The invention relates to new piperidine derivatives and their use as stabilizers.
More particularly, this invention is concerned with the piperidine derivatives having the formula ##STR3## wherein R' represents an alkyl group, a substituted alkyl group, an acyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, an amino group, a substituted amino group or nitroso group;
X represents oxygen atom or sulfur atom, but preferably oxygen;
Y represents oxygen atom, sulfur atom or a group of the formula = N - R" in which R" is hydrogen atom, an alkyl group, especially methyl or a substituted alkyl group, e.g. 2-hydroxyethyl, 2-methoxyethyl or benzyl, or an unsaturated aliphatic group, e.g. allyl or 2-propynyl; most preferably Y is oxygen;
Z represents oxygen atom or a group of the formula >N - R'" in which R'" is most preferably the hydrogen atom, or R'" is an alkyl group having preferably from 1 to 4 carbon atoms, an alkenyl or alkynyl group, e.g. 2-propynyl, but especially alkyl; or a substituted alkyl group, e.g. 2-hydroxyethyl, ethoxymethyl, 2-vinyloxyethyl, 2-phenoxyethyl, 2-acetoxyethyl, 2-benzoyloxyethyl or especially benzyl;
n is an integer of 1 through 4 inclusive, more preferably of 1 through 3, but especially of 1 to 2 and most preferred it represents 1; and
R represents, when n is 1, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, a cycloalkyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, a substituted phosphino group or a substituted phosphinyl group, when n is 2, an alkylene group, an alkenylene group, an arylene group, a substituted arylene group, an aralkylene group, an alkylenediphenylene group, a bis-(alkoxycarbonyl)-alkylene group, an alkylene-bis-(oxycarbonylalkyl) group, a dialkylene ether group or a diphenylene ether group, when n is 3, an alkanetriyl group, tris-(alkoxycarbonyl) alkanetriyl group, an alkanetriyl-tris(oxycarbonylalkyl) group or a group ##STR4## in which p is an integer of 1 through 8 inclusive, and when n is 4, an alkane tetrayl group, a tetrakis(alkoxycarbonyl)alkane-tetrayl group or an alkanetetrayl-tetrakis-(oxycarbonylalkyl) group. The p's as appeared herein may be the same or different.
This invention is also concerned with stabilization of synthetic polymers against photo- and thermal-deterioration thereof by having incorporated therein, in a sufficient amount to prevent said deterioraton, at least one of the piperidine derivatives (I).
The term "synthetic polymer" as used herein are intended to embrace
polyolefins including homopolymers of olefins such as low-density and high-density polyethylene, polypropylene, polystyrene, polybutadiene, polyisoprene and the like, and copolymers of olefins with other ethylenically unsaturated monomers such as ethylene-propylene copolymer, ethylene-butene copolymer, ethylene-vinyl acetate copolymer, styrene-butadiene copolymer, acrylonitrile-styrene-butadiene copolymer and the like;
polyvinyl chlorides and polyvinylidene chlorides including homopolymer of each of vinyl chloride and vinylidene chloride, vinyl chloride-vinylidene chloride copolymer and copolymers of each of vinyl chloride and vinylidene chloride with vinyl acetate or other ethylenically unsaturated monomers;
polyacetals such as polyoxymethylene and polyoxyethylene; polyesters such as polyethylene terephthalate; polyamides such as 6-nylon, 6,6-nylon and 6,10-nylon; and polyurethanes.
In the above formula (I), R' may be exemplified by an alkyl group of 1 to 20 carbon atoms especially 1 to 8 carbon atoms and most preferred 1 carbon atom, e.g., methyl, ethyl, propyl, butyl, pentyl, hexyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl or eicosyl; a hydroxyalkyl group, e.g., 2-hydroxyethyl or 3-hydroxypropyl; allyl, 2-butenyl, 2-propynyl group; a cyanoalkyl group, e.g., 2-cyanomethyl or 2-cyanoethyl; an alkoxyalkyl group, especially one having 2 to 5 carbon atoms e.g., 2-methoxyethyl, ethoxymethyl or 2-ethoxypropyl; an alkenyloxylakyl group, e.g., vinyloxyethyl; an aryloxyalkyl group, e.g., phenoxyethyl; an alkylthioalkyl group, e.g., methylthioethyl; an epoxyalkyl group, e.g., 2,3-epoxypropyl; an acyloxyalkyl group having preferably 3 to 14, and especially 4 to 10 carbon atoms, e.g., acetoxyethyl, octanoyloxyethyl, acryloyloxyethyl, benzoyloxyethyl, m-toluoyloxyethyl, m-methoxy-benzoyloxyethyl or p-chlorobenzoyloxyethyl; an alkoxycarbonylalkyl group preferably having 3 to 15, especially 3 to 10 carbon atoms, e.g., ethoxycarbonylmethyl, octoxycarbonylmethyl or dodecyloxycarbonylmethyl; an aralkyl group, preferably having 7 to 8 carbon atoms, e.g., phenethyl, p-methylbenzyl or p-chlorobenzyl and especially benzyl; 2-hydroxy-2-phenylethyl; a 2-acyloxy-2-phenylethyl group having 10 to 20 carbon atoms, e.g., 2-acetoxy-2-phenylethyl, 2-octanoyloxy-2-phenylethyl or 2-lauroyloxy-2-phenylethyl; an acyl group, e.g., acetyl, an .alpha.,.beta.-unsaturated aliphatic acyl group, preferably having 3 to 9, especially 3 to 4 carbon atoms, e.g., acryloyl, an acryloyl group which is substituted with alkyl or phenyl, e.g., crotonoyl or cinnamoyl; an alkoxycarbonyl group having preferably 2 to 9 carbon atoms, e.g., ethoxycarbonyl or octoxycarbonyl; an aralkyloxycarbonyl group having preferably 8 to 9 carbon atoms, e.g., benzyloxycarbonyl; an amino group; an acylamino group, having preferably 2 to 12 carbon atoms, such as acetylamino, octanoylamino, lauroylamino or aroylamino, e.g., benzoylamino, or an alkylamino group having preferably 1 to 2 carbon atoms, e.g. methylamino or ethylamino; or the nitroso group.
The group of the formula = N - R" may be exemplified by imino, methylimino, allylimino, 2-propynylimino, 2-hydroxy-ethylimino, 2-methoxyethylimino or benzylimino.
The group of the formula >N - R'" may be exemplified by imino, methylimino, ethylimino, butylimino, allylimino, 2-propynylimino, 2-hydroxyethylimino, ethoxymethylimino, 2-vinyloxyethylimino, 2-phenoxyethylimino, 2-acetoxyethylimino, 2-benzyloxyethylimino or benzylimino.
The substitutent R may be exemplified, when n is 1, by the unsubstituted or substituted alkyl groups as illustrated above for R' or a 2,3-epoxypropyloxycarbonylalkyl group having preferably 5 to 6 carbon atoms, e.g., 2,3-epoxypropyloxycarbonylmethyl; aryloxycarbonylalkyl groups having preferably 8 to 12 carbon atoms, e.g., phenyloxycarbonylethyl; an aryl group of 6 to 10 carbon atoms, e.g., phenyl or naphthyl; a halogen- or alkyl-substituted phenyl or naphthyl group, e.g., p-tolyl, m-chlorophenyl or o-chlorophenyl; cyclohexyl; an acyloxyalkyl group as mentioned above for R', whereby aromatic acyloxyalkyl groups having from 9 to 13 carbon atoms, saturated aliphatic acyloxyalkyl groups having from 4to 10 carbon atoms and unsaturated aliphatic acyloxyalkyl groups having from 5 to 6 carbon atoms are prefered; a dialkoxyphosphine group having preferably 2 to 16 carbon atoms, e.g., dimethoxyphosphinyl or dioctoxyphosphinyl; the diphenoxyphosphine group of the formula ##STR5## or a group of the formula ##STR6## in which R"" is an alkyl group of from 1 to 8 carbon atoms or a phenyl group.
The substituent R, when n is 2, may be exemplified by a polymethylene group of 1 to 10, preferably 1 to 6 carbon atoms, e.g., trimethylene or hexamethylene; a group of the formula --(CH.sub.2).sub.p --CH.dbd.CH--(CH.sub.2).sub.p -- in which p is an integer of 1 through 8 inclusive and p's may be the same or different herein, e.g., --CH.sub.2 --CH.dbd.CH--CH.sub.2 --; an arylene group having preferably 6 to 7 carbon atoms, e.g., a phenylene group which may be substituted with alkyl, e.g., ##STR7## a xylylene of the formula ##STR8## an alkylenediphenylene group having from 13 to 15 carbon atoms, e.g., a group of the formula ##STR9## a bis-(alkoxycarbonyl)alkylene group of the formula ##STR10## in which p is as defined above and p.sub.1 is an integer of zero through 8 inclusive, said bis-(alkoxycarbonyl)alkylene group preferably contains from 8 to 14 carbon atoms, e.g.,
--(CH.sub.2).sub.2 OCO(CH.sub.2).sub.4 COO(CH.sub.2).sub.2 --; a group of the formula ##STR11## in which p is as defined above, e.g., ##STR12## an alkylene-bis-(oxycarbonylalkyl) group of the formula ##STR13## in which p is as defined above, said group having preferably 6 to 12 carbon atoms, e.g., --CH.sub.2 COO(CH.sub.2).sub.2 OCOCH.sub.2 --; a dialkylene ether group of the formula
--(CH.sub.2).sub.p --O--(CH.sub.2).sub.p -- in which p is as defined above, e.g.,
--CH.sub.2 --O--CH.sub.2 -- or preferably --CH.sub.2 CH.sub.2 --O--CH.sub.2 CH.sub.2 --; or a diphenylene ether group of the formula ##STR14##
The substituent R, when n is 3, may be exemplified by a group of the formula ##STR15## in which p is as defined above, e.g., ##STR16## a tris-(alkoxycarbonyl)alkanetriyl group of the formula ##STR17## in which p is as defined above, said group having preferably from 12 to 15 carbon atoms, e.g., ##STR18## a group of the formula ##STR19## which p is as defined above, e.g., ##STR20## an alkanetriyl tris(oxycarbonylalkyl) group of the formula ##STR21## in which p is as defined above, said group having preferably from 9 to 13 carbon atoms, e.g., ##STR22## or a group of the formula ##STR23## in which p is as defined above, e.g., ##STR24##
The substituent R, when n is 4, may be exemplified by a group of the formula ##STR25## in which p is as defined above; a group of the formula ##STR26## in which p is defined above, e.g., ##STR27## or an alkanetetrayl-tetrakis(oxycarbonylalkyl) group, e.g. of the formula ##STR28## in which p is as defined above, said group having preferably from 13 to 17 carbon atoms.
Synthetic polymers have been widely utilized in the art, in view of their excellent properties, in various forms of shapes, for example, filament, fibre, yarn, film, sheet, other molded article, latex and foam. However, these polymers have some drawbacks such as poor light- and heat-stabilities and the like. Stated illustratively, polyolefins and polyurethane elastomers frequently tend to undergo severe deterioration when exposed to light such as sunlight or ultraviolet rays, and polyvinyl chloride and polyvinylidene chloride frequently tend to deteriorate and become colored by the action of light and heat together with elimination of hydrogen chloride therefrom. Polyamides are also frequently subjected to photo-deterioration. For the purpose of stabilizing these synthetic polymers against such deterioration, there have heretofore been proposed in the art a number of stabilizers; for example, for polyolefins, benzotriazole compounds and benzophenone compounds; for polyurethanes, phenol compounds and benzophenone compounds; and for polyvinyl chloride and polyvinylidine chloride, lead salts such as basic lead silicate and tribasic lead maleate, and organotin compounds such as dibutyltin laurate and dibutyltin maleate.
Although such prior stabilizers are known to be considerably satisfactory, there still remained some problems to be improved.
Thus, numerous attempts have been made in the art to find and develop new and more effective stabilizers.
As a result of our extensive studies, it has now been found that the new piperidine derivatives (I) of this invention can be satisfactorily prepared and exhibit a high stabilizing effect against photo- and thermal-deterioration of the synthetic polymers.
It is, accordingly, an object of this invention to provide new and useful piperidine derivatives (I).
Another object is to provide synthetic polymer composition stabilized against the deterioration thereof by having incorporated therein a sufficient amount to prevent the deterioration of at least one of the piperidine derivatives (I).
Other objects of this invention will become apparent to those skilled in the art from the following description.
In one aspect of this invention, the piperidine derivatives (I) are all new substances unknown in the art.
Among the piperidine derivatives (I) of this invention, particularly useful are the piperidine derivatives having the formula (I) wherein
R' represents an alkyl group of 1 to 20 carbon atoms, a hydroxyalkykl group, allyl group, 2-propynyl group, a cyanoalkyl group, an alkoxyalkyl group, an alkenyloxyalkyl group, an aryloxyalkyl group, an alkylthioalkyl group, an epoxyalkyl group, an acyloxyalkyl group, an alkoxycarbonylalkyl group, an aralkyl group, acryloyl group, an acryloyl group which is substituted with alkyl or phenyl, an aralkyloxycarbonyl group, amino group or an amino group which is substituted with aroyl or alkyl;
R represents, when n is 1, the above-defined unsubstituted or substituted alkyl group, a phenyl or naphthyl group which may be substituted with halogen or alkyl in the aryl moiety, a cycloalkyl group, an alkoxycarbonyl group, an aralkyloxycarbonyl group, the group of the formula ##STR29## or the group of the formula ##STR30## when n is 2, a polymethylene group of 1 to 10 carbon atoms, a group of the formula --(CH.sub.2).sub.p --CH.dbd.CH--(CH.sub.2).sub.p -- in which p is an integer of 1 through 8 inclusive and p's may be the same or different, a phenylene group which may be substituted with alkyl, a group of the formula, ##STR31## a group of the formula ##STR32## a group of the formula ##STR33## in which p and p.sub.1 are as defined above, a group of the formula ##STR34## in which p is as defined above, a group of the formula ##STR35## in which p is as defined above, a group of the formula --(CH.sub.2).sub.p --O--(CH.sub.2).sub.p -- in which p is as defined above or a group of the formula ##STR36## when n is 3, a group of the formula ##STR37## in which p is as defined above, a group of the formula ##STR38## in which p is as defined above, a group of the formula ##STR39## in which p is as defined above, a group of the formula ##STR40## in which p is as defined above or a group of the formula ##STR41## in which p is as defined above, and, when n is 4, a group of the formula ##STR42## in which p is as defined above, a group of the formula ##STR43## in which p is as defined above or a group of the formula ##STR44## in which p is as defined above. Y represents oxygen atom, sulfur atom or a group of the formula = N - R" in which R" is hydrogen atom or the above-defined unsubstituted or substituted alkyl group; and Z represents oxygen atom or a group of the formula >N - R'" in which R'" is hydrogen atom or the abovedefined unsubstituted or substituted alkyl group.
More preferable group of the piperidine derivatives (I) of this invention can be represented by the following formula (II): ##STR45##
In the above formula (II),
R.sub.1 represents an alkyl group having from 1 to 8 carbon atoms, especially the methyl group, the allyl group, an aralkyl group having from 7 to 8 carbon atoms, especially the benzyl group, an acyloxyalkyl group having from 4 to 10 carbon atoms or a hydroxyalkyl group having from 2 to 3 carbon atoms, especially the hydroxyethyl group, the 2,3-epoxypropyl group, an .alpha.,.beta.-unsaturated aliphatic acyl group having from 3 to 4 carbon atoms or an acetyl group,
R.sub.3 represents an alkyl group of from 1 to 4 carbon atoms or most preferably the hydrogen atom; m is an integer of 1 or 2, most preferably 1; and
R.sub.2 represents when m is 1, an alkyl group having from 1 to 18, especially from 1 to 12 carbon atoms, a hydroxyalkyl group having from 2 to 3 carbon atoms, especially 2-hydroxyethyl, an alkenyl group having from 3 to 4 carbon atoms, especially allyl, a 2-hydroxy-2-phenylethyl group, a 2,3-epoxypropyl group, an aralkyl group having from 7 to 8 carbon atoms, especially benzyl, an acyloxyalkyl group having preferably from 9 to 13 carbon atoms as aromatic acyloxyalkyl, from 4 to 10 carbon atoms as saturated aliphatic acyloxyalkyl and from 5 to 6 carbon atoms as unsaturated aliphatic acyloxyalkyl, an alkoxycarbonylmethyl group having from 3 to 10 carbon atoms, phenyl or cyclohexyl, and when m is 2, an alkylene group having from 1 to 6 carbon atoms, a butenylene group, a 2,4-toluylene group, a xylylene group of the formula ##STR46## or a group of the formula --(CH.sub.2).sub.p --O--(CH.sub.2).sub.p -- in which p is as defined above, especially the diethylene ether group.
Representatives of the new piperidine derivatives (I) of this invention are illustratively listed below. However, it should be understood that these illustrated compounds are not contemplated to be limiting the scope of this invention.
1. 1,3,8-triaza-3,7,7,8,9,9-hexamethyl-spiro[4.5]decane-2,4-dione
2. 1,3,8-triaza-3-butyl-7,7,8,9,9-pentamethyl-spiro[4.5]-decane-2,4-dione
3. 1,3,8-triaza-7,7,8,9,9-pentamethyl-3-octyl-spiro[4.5]-decane-2,4-dione
4. 1,3,8,-triaza-3,8-diethyl-7,7,9,9-tetramethyl-spiro-[4.5]-decane-2,4-dione
5. 1,3,8-triaza-3-butyl-8-ethyl-7,7,9,9-tetramethylspiro[4.5]decane-2,4-dione
6. 1,3,8-triaza-8-ethyl-7,7,9,9-tetramethyl-3-octylspiro[4.5]decane-2,4-dione
7. 1,3,8-triaza-1,3,7,7,8,9,9-heptamethyl-spiro[4.5]decane-2,4-dione
8. 1,3,8-triaza-3-butyl-1,8-diethyl-7,7,9,9-tetramethylspiro[4.5]decane-2,4-d ione
9. 1,3,8-triaza-1-butyl-8-ethyl-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]decane- 2,4-dione
10. 3,8-diaza-7,7,8,9,9-pentamethyl-3-octadecyl-1-oxaspiro[4.5]-decane-2,4-dio ne
11. 8-allyl-1,3,8-triaza-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]decane-2,4-dion e
12. 1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]decane-2,4-dio ne
13. 1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-3-octadecyl-spiro[4.5]decane-2,4 -dione
14. 1,3,8-triaza-3,7,7,8,9,9-hexamethyl-1-ethoxymethyl-spiro 4.5]decane-2,4-dione
15. 1,3,8-triaza-3,7,7,8,9,9-hexamethyl-1-(2-phenoxyethyl)-spiro[4.5]decane-2, 4-dione
16. 1,3,8-triaza-3,7,7,8,9,9-hexamethyl-1-(2-vinyloxyethyl)-spiro[4.5]decane-2 ,4-dione
17. 1,3,8-triaza-3-butyl-8-(2-hydroxyethyl)-7,7,9,9-tetramethyl-spiro[4.5]deca ne-2,4-dione
18. 1,3,8-triaza-8-(2-hydroxyethyl)-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]deca ne-2,4-dione
19. 1,3,8-triaza-8-(2-cyanoethyl)-1,3,7,7,9,9-hexamethyl-spiro[4.5]-decane-2,4 -dione
20. 1,3,8-triaza-3-butyl-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]-de cane-2,4-dione
21. 1,3,8-triaza-8-(2-ethoxyethyl)-3,7,7,9,9-pentamethyl-spiro[4.5]-decane-2,4 -dione
22. 1,3,8-triaza-8-crotonoyl-3,7,7,9,9-pentamethyl-spiro- 4.5]decane-2,4-dione
23. 1,3,8-triaza-8-cinnamoyl-3,7,7,9,9-pentamethyl-spiro- 4.5]decane-2,4-dione
24. 1,3,8-triaza-8-benzyloxycarbonyl-3-butyl-7,7,9,9-tetramethyl-spiro[4.5]dec ane-2,4-dione
25. 1,3,8-triaza-3,7,7,9,9-pentamethyl-8-nitroso-spiro- 4.5]decane-2,4-dione
26. 1,3,8-triaza-3-butyl-7,7,9,9-tetramethyl-8-nitroso-spiro[4.5]decane-2,4-di one
27. 8-amino-1,3,8-triaza-3-butyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dion e
28. 1,3,8-triaza-8-benzamido-3-butyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4- dione
29. 1,3,8-triaza-3-butyl-8-ethylamino-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4 -dione
30. 3-allyl-1,3,8-triaza-7,7,8,9,9-pentamethyl-spiro 4.5]-decane-2,4-dione
31. 3-allyl-1,3,8-triaza-8-ethyl-7,7,9,9-tetramethyl-spiro- 4.5]decane-2,4-dione
32. 1,3-diallyl-1,3,8-triaza-7,7,8,9,9-pentamethyl-spiro- 4.5]decane-2,4-dithione
33. 3,8-diallyl-1,3,8-triaza-7,7,9,9-tetramethyl-spiro 4.5]-decane-2,4-dione
34. 3,8-diallyl-1,3,8-triaza-1-benzyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4 -dione
35. 3-allyl-1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]dec ane-2,4-dione
36. 3-allyl-1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dio ne
37. 1,3,8-triaza-7,7,9,9-tetramethyl-3,8-di(2-propynyl)-spiro[4.5]decane-2,4-d ione
38. 1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-3-(2-propynyl)-spiro[ 4.5]decane-2,4-dione
39. 1,3,8-triaza-3,8-bis(2-hydroxyethyl)-7,7,9,9-tetramethyl-spiro[4.5]decane- 2,4-dione
40. 1,3,8-triaza-8-cyanomethyl-3-(3-hydroxypropyl)-7,7,9,9-tetramethyl-spiro[4 .5]decane-2,4-dione
41. 1,3,8-triaza-7,7,9,9-tetramethyl-3,8-bis(2-methoxyethyl)-spiro[4.5]decane- 2,4-dione
42. 1,3,8-triaza-1,7,7,9,9-pentamethyl-3,8-bis(2-methoxyethyl)-spiro[4.5]decan e-2,4-dione
43. 1,3,8-triaza-3-ethoxymethyl-7,7,8,9,9-pentamethyl-spiro 4.5]decane-2,4-dione
44. 1,3,8-triaza-8-ethyl-7,7,9,9-tetramethyl-3-(2-vinyloxyethyl)-spiro 4.5]decane-2,4-dione
45. 8-allyl-1,3,8-triaza-7,7,9,9-tetramethyl-3-(2-phenoxyethyl)-spiro[4.5]deca ne-2,4-dione
46. 3-(2-acetoxyethyl)-1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-spiro[4.5]dec ane-2,4-dione
47. 3,8-bis(2-acetoxyethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane- 2,4-dione
48. 1,3,8-triaza-2,2,6,6-tetramethyl-3,8-bis(2-octanoyloxyethyl)-spiro[4.5]dec ane-2,4-dione
49. 8-acryloyl-3-(2-acryloyloxyethyl)-1,3,8-triaza--b 7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione
50. 3,8-bis(2-acryloyloxyethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]dec ane-2,4-dione
51. 1,3,8-triaza-3-(2-benzoyloxyethyl)-8-ethyl-7,7,9,9-tetramethyl-spiro[4.5]d ecane-2,4-dione
52. 1,3,8-triaza-3,8-bis(2-benzoyloxyethyl)-7,7,9,9-tetramethyl-spiro[4.5]deca ne-2,4-dione
53. 1,3,8-triaza-7,7,9,9-tetramethyl-3,8-bis(2-m-toluoyloxyethyl)-spiro[4.5]de cane-2,4-dione
54. 3,8-bis(2-o-anisoyloxyethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]de cane-2,4-dione
55. 1,3,8-triaza-3,8-bis(2-p-chlorobenzoyloxyethyl)-7,7,9,9-tetramethyl-spiro 4.5]decane-2,4-dione
56. 1,3,8-triaza-3,8-bis(2-cyanoethyl)-7,7,9,9-tetramethyl-spiro[4.5]decane-2, 4-dione
57. 1,3,8-triaza-7,7,8,9,9-pentamethyl-3-(2-methylthioethyl)-spiro 4.5]decane-2,4-dione
58. 1,3,8-triaza-3-(2,3-epoxypropyl)-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2, 4-dione
59. 1,3,8-triaza-3,8-bis(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]decane -2,4-dione
60. 1,3,8-triaza-3-ethoxycarbonylmethyl-7,7,8,9,9-pentamethyl-spiro[4.5]decane -2,4-dione
61. 1,3,8-triaza-3-(2,3-epoxypropyloxycarbonylmethyl)-7,7,8,9,9-pentamethyl-sp iro[4.5]decane-2,4-dione
62. 1,3,8-triaza-7,7,8,9,9-pentamethyl-3-phenoxycarbonylmethyl-spiro[4.5]decan e-2,4-dione
63. 1,3,8-triaza-3-ethoxycarbonyl-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-d ione
64. 1,3,8-triaza-3-benzyl-7,7,8,9,9-pentamethyl-spiro[4.5]-decane-2,4-dione
65. 1,3,8-triaza-3-benzyl-7,7,9,9-tetramethyl-8-octyl-spiro 4.5]decane-2,4-dione
66. 1,3,8-triaza-3-benzyl-1,8-diethyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4 -dione
67. 1,3,8-triaza-1,3-dibenzyl-7,7,8,9,9-pentamethyl-spiro 4.5]-decane-2,4-dione
68. 1,3,8-triaza-7,7,9,9-tetramethyl-3-phenethyl-8-(2-propynyl)-spiro[4.5]deca ne-2,4-dione
69. 1,3,8-triaza-3,8-dibenzyl-7,7,9,9-tetramethyl-spiro 4.5]-decane-2,4-dione
70. 1,3,8-triaza-3,8-dibenzyl-1,7,7,9,9-pentamethyl-spiro 4.5]-decane-2,4-dione
71. 1,3,8-triaza-3,8-dibenzyl-1-butyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4 -dione
72. 1,3,8-triaza-3,8-dibenzyl-1-(2-hydroxyethyl)-7,7,9,9-tetramethyl-spiro[4.5 ]decane-2,4-dione
73. 1-(2-acetoxyethyl)-1,3,8-triaza-3,8-dibenzyl-7,7,9,9-tetramethyl-spiro[4.5 ]decane-2,4-dione
74. 1,3,8-triaza-1-(2-benzoyloxyethyl)-3,8-dibenzyl-7,7,9,9-tetramethyl-spiro[ 4.5]decane-2,4-dione
75. 1,3,8-triaza-3,8-dibenzyl-7,7,9,9-tetramethyl-1-(2-propynyl)-spiro[4.5]dec ane-2,4-dione
76. 1,3,8-triaza-1,3,8-tribenzyl-7,7,9,9-tetramethyl-spiro- 4.5]decane-2,4-dione
77. 1,3,8-triaza-3-benzyl-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro 4.5]decane-2,4-dione
78. 1,3,8-triaza-7,7,8,9,9-pentamethyl-3-(p-methylbenzyl)-spiro 4.5]decane-2,4-dione
79. 1,3,8-triaza-3-(p-chlorobenzyl)-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4 -dione
80. 8-acryloyl-1,3,8-triaza-3-benzyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4- dione
81. 1,3,8-triaza-3-cyclohexyl-7,7,8,9,9-pentamethyl-spiro 4.5]decane-2,4-dione
82. 1,3,8-triaza-3-cyclohexyl-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4. 5]decane-2,4-dione
83. 1,3,8-triaza-8-benzyl-3-cyclohexyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2, 4-dione
84. 1,3,8-triaza-8-benzyl-4-benzylimino-3-cyclohexyl-7,7,9,9-tetramethyl-spiro [4.5]decane-2,-one
85. 1,3,8-triaza-7,7,8,9,9-pentamethyl-3-phenyl-spiro 4.5]-decane-2,4-dione
86. 1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-3-phenyl-spiro[4.5]de cane-2,4-dione
87. 1,3,8-triaza-4-imino-7,7,8,9,9-pentamethyl-3-phenyl-spiro[4.5]decane-2,4-o ne
88. 1,3,8-triaza-7,7,8,9,9-pentamethyl-4-methylimino-3-phenyl-spiro[4.5]decane -2-one
89. 1,3,8-triaza-4-imino-7,7,8,9,9-pentamethyl-3-phenyl-spiro[4.5]decane-2-thi one
90. 8-allyl-4-allylimino-1,3,8-triaza-7,7,9,9-tetramethyl-3-phenyl-spiro[4.5]d ecane-2-one
91. 1,3,8-triaza-8-(2-hydroxyethyl)-4-(2-hydroxyethylimino)-7,7,9,9-tetramethy l-3-phenyl-spiro[4.5]decane-2-one
92. 1,3,8-triaza-1,7,7,9,9-pentamethyl-8-(2-methoxyethyl)-4-(2-methoxyethylimi no)-3-phenyl-spiro[4.5]decane-2-one
93. 1,3,8-triaza-1,8-dibenzyl-7,7,9,9-tetramethyl-3-phenyl-spiro[4.5]decane-4- one-2-thione
94. 3,8-diaza-4-imino-7,7,8,9,9-pentamethyl-3-(.alpha.-naphthyl)-1-oxa-spiro[4 .5]decane-2-thione
95. 1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-3-(p-tolyl)-spiro[4.5]decane-2,4 -dione
96. 3,8-diaza-7,7,8,9,9-pentamethyl-1-oxa-3-(p-tolyl)-spiro[4.5]decane-2,4-dio ne
97. 3,8-diaza-4-imino-7,7,8,9,9-pentamethyl-1-oxa-3-(p-tolyl)-spiro[4.5]decane -2-one
98. 3,8-diaza-3-(o-chlorophenyl)-7,7,8,9,9-pentamethyl-1-oxa-spiro[4.5]decane- 2,4-dione
99. 3,8-diaza-3-(o-chlorophenyl)-7,7,8,9,9-pentamethyl-4-methylimino-1-oxa-spi ro[4.5]decane-2-one
100. 1,3,8-triaza-7,7,8,9,9-pentamethyl-3-diphenoxyphosphino-spiro[4.5]decane-2 ,4-dithione
101. 1,3,8-triaza-7,7,8,9,9-pentamethyl-3-diphenoxyphosphinyl-spiro[4.5]decane- 2,4-dithione
102. 1,3-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)p ropane
103. 1,6-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]-3-decyl)hex ane
104. 1,6-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxospiro[4.5]-3-decyl)he xane
105. 1,6-bis[1,3,8-triaza-7,7,9,9-tetramethyl-2,4-dioxo-8-(2-propynyl)-spiro[4. 5]-3-decyl]hexane
106. 1,6-bis[1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-2,4-dioxo-spi ro[4.5]-3-decyl]hexane
107. 1,6-bis(1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-2,4-dioxo-spiro[4.5]-3-d ecyl)hexane
108. 1,4-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxospiro[4.5]-3-decyl)tr ans-2-butene
109. 2,2'-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]-3-decyl)di ethylether
110. 2,2'-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxospiro[4.5]-3-decyl)d iethylether
111. .alpha.,.alpha.'-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5 ]-3-decyl)-p-xylene
112. .alpha.,.alpha.'-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxospiro[4. 5]-3-decyl)-p-xylene
113. .alpha.,.alpha.'-bis[1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl- 2,4-dioxo-spiro[4.5]-3-decyl]-p-xylene
114. .alpha.,.alpha.'-bis(1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-2,4-dioxo-s piro[4.5]-3-decyl)-p-xylene
115. 2,4-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]-3-decyl)tol uene
116. 2,4-bis(3,8-diaza-4-imino-7,7,8,9,9-pentamethyl-1-oxa-2-oxo-spiro[4.5]-3-d ecyl)toluene
117. 4,4'-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]-3-decyl)di phenylmethane
118. 4,4'-bis[1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-2,4-dioxo-sp iro[4.5]-3-decyl]diphenylmethane
119. 4,4'-bis[1,3,8-triaza-7,7,9,9-tetramethyl-2-oxo-8-(2-propynyl)-4-(2-propyn ylimino)-spiro[4.5]-3-decyl]diphenylmethane
120. 4,4'-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]-3-decyl)di phenylether
121. bis[2-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]-3-decyl)ethy l]adipate
122. bis[2-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]-3-decyl)ethy l]terephthalate
123. ethyleneglycol bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]-3-decylmethylc arboxylate)
124. 4-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]-3-decylmethyl)- 1,7-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]-3-decyl)hep tane
125. tris[2-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]-3-decyl)eth yl]tricarballylate
126. tris[2-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]-3-decyl)eth yl]trimellitate
127. tris(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]-3-decyl)acetin
128. 2,2',2"-tris[1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-2,4-diox o-spiro[4,5]-3-decyl]thriethylisocyanurate
129. tetrakis[2-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]-3-decy l)ethyl]pyromellitate
130. pentaerythritol tetrakis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]-3-decylme thylcarboxylate) 131. 3,8-bis(2-methylallyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2 ,4-dione
132. 3,8-bis(2-ethoxypropyl)-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]decane-2 ,4-dione
133. 3,8-bis(2-lauroyloxyethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]-dec ane-2,4-dione
134. 3,8-bis(octoxycarbonylmethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]d ecane-2,4-dione
135. 3,8-bis(dodecyloxycarbonylmethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4 .5]decane-2,4-dione
136. 3,8-bis(2-hydroxy-2-phenylethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4. 5]decane-2,4-dione
137. 3,8-bis(2-acetoxy-2-phenylethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4. 5]-decane-2,4-dione
138. 3,8-bis(2-benzoyloxy-2-phenylethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro [4.5]decane-2,4-dione
139. 3,8-bis(2-octanoyloxy-2-phenylethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spir o[4.5]decane-2,4-dione
140. 3,8-bis(2-lauroyloxy-2-phenylethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro [4.5]decane-2,4-dione
141. 3,8-bis(methoxycarbonyl)-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]decane- 2,4-dione
142. 3,8-bis(butoxycarbonyl)-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]decane-2 ,4-dione
143. 3,8-bis(octoxycarbonyl)-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]decane-2 ,4-dione
144. 3,8bis-(2-phenylethoxycarbonyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5 ]decane-2,4-dione
145. 3-cyanomethyl-1,3,8-triaza-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dion e
146. 3-(4-tert.-butylphenoxycarbonylmethyl)-1,3,8-triaza-7,7,8,9,9-pentamethyl- spiro[4.5]decane-2,4-dione
147. 3-dodecyloxycarbonyl-1,3,8-triaza-7,7,8,9,9-pentamethylspiro[4.5]decane-2, 4-dione
148. 3-benzyloxycarbonyl-1,3,8-triaza-7,7,8,9,9-pentamethylspiro[4.5]decane-2,4 -dione
149. 3-dimethoxyphosphinyl-1,3,8-triaza-7,7,8,9,9-pentamethylspiro[4.5]decane-2 ,4-dione
150. 3-dipropoxyphosphinyl-1,3,8-triaza-7,7,8,9,9-pentamethylspiro[4.5]decane-2 ,4-dione
151. 3-dioctoxyphosphinyl-1,3,8-triaza-7,7,8,9,9-pentamethylspiro[4.5]decane-2, 4-dione
152. 8-dodecyl-3-octyl-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-di one
153. 8-octadecyl-3-octyl-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]decane-2,4-d ione
154. 8-(2-hydroxypropyl)-3-octyl-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]deca ne-2,4-dione
155. 8-ethoxycarbonylmethyl-3-octyl-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5] decane-2,4-dione
156. 8-(2-phenylethyl)-3-octyl-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]decane -2,4-dione
157. 8-acetylamino-3-octyl-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]decane-2,4 -dione
158. 8-octanoylamino-3-octyl-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]decane-2 ,4-dione
159. 8-lauroylamino-3-octyl-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]decane-2, 4-dione
160. 8-methylamino-3-octyl-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]decane-2,4 -dione
161. 1,1-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]decyl-3-)met hane
162. 1,4-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]decyl-3-)ben zene
163. 4,4'-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]decyl-3-)2, 2-diphenylpropan
164. bis[2-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]decyl-3-)ethy l]succinate
165. bis[2-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]decyl-3-)ethy l]-sebacate
166. 1,6-hexanediol bis[(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]decyl-3-)methy )carboxylate]
167. 1,6-hexanediol bis[(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]decyl-3-)2-eth ylcarboxylate]
168. 1,1,1-trimethylolpropane tris[(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]decyl-3-)meth ylcarboxylate]
169. pentaerythritol tetrakis[(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]decyl-3-) 2-ethylcarboxylate]
170. 1,3,8-triaza-3-octyl-8-acetyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dio ne
171. 1,3,8-triaza-3-octyl-8-acryloyl-7,7,9,9-tetramethylspiro[4.5]decane-2,4-di one
172. 1,3,8-triaza-3-butyl-8-octyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dion e
173. 1,3,8-triaza-3-butyl-8-acetoxyethyl-7,7,9,9-tetramethylspiro[4.5]decane-2, 4-dione
174. 1,3,8-triaza-3-butyl-8-ethoxycarbonylmethyl-7,7,9,9-tetramethyl-spiro[4.5] -decane-2,4-dione
175. 1,3,8-triaza-3-cyclohexyl-8-propyl-7,7,9,9-tetramethylspiro[4.5]decane-2,4 -dione
176. 3-butyl-8-methoxyethyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]-decane-2 ,4-dione
177. 3-stearyl-8-allyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dio ne
In view of stabilizing effects, the following piperidine derivatives (I) are, in particular, preferable and effective:
1,3,8-triaza-3-butyl-7,7,8,9,9-pentamethyl-spiro[4.5]decane -2,4-dione,
1,3,8-triaza-7,7,8,9,9-pentamethyl-3-octyl-spiro[4.5]decane-2,4-dione,
8-allyl-1,3,8-triaza-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]-decane-2,4-dion e,
1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-3-octyl-spiro[4.5]-decane-2,4-dio ne,
1,3,8-triaza-8-(2-hydroxyethyl)-7,7,9,9-tetramethyl-3-octylspiro[4.5]-decan e-2,4-dione,
1,3,8-triaza-3-butyl-8-(2,3-epoxypropyl)-7,7,9,9-tetramethylspiro[4.5]-deca ne-2,4-dione,
3-allyl-1,3,8-triaza-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4dione,
3,8-diallyl-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione,
3-allyl-1,3,8-triaza-(2,3-epoxypropyl)-7,7,9,9-tetramethylspiro[4.5]decane- 2,4-dione,
3,8-bis(2-acetoxyethyl)-1,3,8-triaza-7,7,9,9-tetramethylspiro[4.5]decane-2, 4-dione,
1,3,8-triaza-3-(2,3-epoxypropyl)-7,7,8,9,9-pentamethylspiro[4.5]decane-2,4- dione
1,3,8-triaza-3,8-di(2,3-epoxypropyl)-7,7,9,9-tetramethylspiro[4.5]decane-2, 4-dione,
1,3,8-triaza-3,8-dibenzyl-1,7,7,9,9,-pentamethyl-spiro[4.5]-decane-2,4-dion e,
1,3-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)pr opane,
1,6-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxospiro[4.5]-3-decyl)hex ane,
2,2'-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxospiro[4.5]-3-decyl)die thylether,
2,2'-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxospiro[4.5]-3-decyl)di ethylether,
1,3,8-triaza-1,3,7,7,8,9,9-heptamethyl-spiro[4.5]decane-2,4-dione and
.alpha.,.alpha.'-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4. 5]-3-decyl)-p-xylene.
The most prefered compounds are compounds No. 2, 3, 12, 30, 58 and 103 (cf. list on pages 14 to 21).
The piperidine derivatives (I) of this invention may be readily prepared in various manners. For instance, they are prepared by any of the thirteen routes as illustratively shown below.
1. The compound (III) or the alkalimetal salt thereof is reacted with the halide (R.sub.0 - X.sub.1) in a molar ratio of 1 : 2 by heating in the presence or absence of a base to produce the compound (IV). ##STR47##
In the above formulae, R.sub.0 represents an alkyl group, allyl group, 2-propynyl group, an epoxyalkyl group, an aralkyl group, an alkoxyalkyl group, an acyloxyalkyl group, an alkoxycarbonylalkyl group, 2-hydroxy-2-phenylethyl group, an 2-acyloxy-2-phenylethyl group, an alkoxycarbonyl group or an aralkoxycarbonyl group and X.sub.1 represents a halogen atom.
This method will be more fully exemplified by Examples 1 and 2 and provide, for example, those compounds designated by Nos. 1, 4, 33, 37, 59, 69 and 131 - 144 hereinabove.
2. The compound (V) is reacted with the halide R.sub.4 -X.sub.1 by heating in the presence or absence of a base to produce the compound (VI). ##STR48##
In the above formulae, R and n are as defined above, R.sub.4 represents an alkyl group, allyl group, 2-propynyl group, a cyanoalkyl group, a hydroxyalkyl group, an epoxyalkyl group, an aralkyl group, an alkoxycarbonylalkyl group, an acyl group or nitroso group, Z.sub.1 represents oxygen atom or the group -NH- and X.sub.1 represents a halogen atom.
This method will be more fully exemplified by Examples 3, 4 and 5 and provide, for example, those compounds designated by Nos. 2, 3, 5, 6, 10, 11, 12, 13, 20, 25, 26, 30, 31, 35, 36, 38, 40, 43, 44, 45, 46, 49, 51, 57, 58, 60, 64, 68, 77, 78, 79, 80, 81, 82, 83, 85, 86, 95, 96, 98, 103, 105, 106, 107, 109, 111, 113, 114, 115, 117, 118, 120, 121, 122, 123, 124, 128, 145 - 156, 161 - 172 and 174 - 177 hereinabove.
3. The compound (VII) is reacted with the halide R.sub.5 -X.sub.1 by heating in the presence of a base to produce the compound (VIII). ##STR49##
In the above formulae, R, R' and n are as defined above, R.sub.5 represents an alkyl group, allyl group, 2-propynyl group, a hydroxyalkyl group, an alkoxyalkyl group, an alkenyloxyalkyl group, an aryloxyalkyl group, an acyloxyalkyl group or an aralkyl group and X.sub.1 represents a halogen atom.
This method will be more fully exemplified by Example 6 and provide, for example, those compounds designated by Nos. 7, 8, 9, 14, 15, 16, 19, 32, 34, 42, 66, 67, 70, 71, 72, 73, 74, 75, 76, 92 and 93 hereinabove.
4. The compound (IX) is reacted with the halide R.sub.6 -X by heating in the presence or absence of a base to produce the compound (X) ##STR50##
In the above formulae, R, n, X and Z.sub.1 are as defined above and R.sub.6 represents an alkyl group, allyl group, 2-propynyl group, a hydroxyalkyl group, an alkoxyalkyl group or an aralkyl group.
This method will be more fully exemplified by Example 7 and provide, for example, those compounds designated by Nos. 84, 88, 90, 91, 92, 99 and 119 hereinabove.
5. The compound (XI) is reacted with formaldehyde and formic acid to produce the compound (XII). ##STR51##
In the above formulae, R, n and Z.sub.1 are as defined above and Y.sub.1 represents oxygen atom, sulfur atom or the group = NH.
This method will be more fully exemplified by Example 8 and provide, for example, those compounds designated by Nos. 2, 3, 10, 30, 64, 81, 85, 87, 89, 94, 97, 103, 109, 111, 115, 116, 117, 145 - 148 and 161 - 169 hereinabove.
6. The compound (XIII) is reacted with ethylene oxide by heating under pressure in the presence of an acid to produce the compound (XIV). ##STR52##
In the above formulae, R, n, Y.sub.1 and Z are as defined above.
This method will be more fully exemplified by Example 9 and provide, for example, those compounds designated by Nos. 17 and 18 hereinabove.
7. The compound (XV) is reacted with ethylene oxide by heating under pressure in the presence of an acid to produce the compound (XVI). ##STR53##
In the above formulae, Y.sub.1 and Z.sub.1 are as defined above.
This method will be more fully exemplified by Example 10 and provide, for example, the compound designated by No. 39 hereinabove.
8. The compound (XVII) or (XIX) is reacted with an acid halide in the presence of a base to produce the compound (XVIII) or (XX). ##STR54##
In the above formulae, n, X.sub.1, Y.sub.1 and Z.sub.1 are as defined above, the acyl moiety of the acyl halide R.sub.8 -(COX.sub.1).sub.n or R.sub.8 COX.sub.1 represents a monoacyl group, a biacyl group, a triacyl group or tetraacyl group, R.sub.7 represents an alkyl group, allyl group, 2-propynyl group, a cyanoalkyl group, an alkoxyalkyl group, an alkenyloxyalkyl group, an aryloxyalkyl group, an epoxyalkyl group, an alkoxycarbonyalkyl group, an aralkyl group, an acyl group or nitroso group, and m' is an integer of 2 through 4 inclusive.
This method will be more fully exemplified by Example 11 and provide, for example, those compounds designated by Nos. 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 121, 122, 125, 126 and 129 as well as No. 173 in combination with methode 6 hereinabove.
9. The compound (XXI) or the alkali metal salt thereof is reacted with the halide R.sub.9 (X.sub.1).sub.n to produce the compound (XXII). ##STR55##
In the above formulae, n, X.sub.1 and Z.sub.1 are as defined above. R.sub.9 represents, when n is 1, an alkyl group, allyl group, 2-propynyl group, a hydroxyalkyl group, a cyanoalkyl group, an alkoxyalkyl group, an alkenyloxyalkyl group, an aryloxyalkyl group, an epoxyalkyl group, an acyloxyalkyl group, an alkylthioalkyl group, an alkoxycarbonylalkyl group, an aryloxycarbonylalkyl group, an aralkyl group, an alkoxycarbonyl group, an aralkyloxycarbonyl group, a substituted phosphino group or a substituted phosphinyl group; when n is 2, an alkylene group, an alkenylene group, an aralkylene group, a bis(alkoxycarbonyl)alkylene group, an alkylene-bis(oxycarbonylalkyl) group or a dialkylene ether group; when n is 3, an alkanetriyl group, a tris(alkoxycarbonyl)alkane-triyl group, an alkanetriyl-tris(oxycarbonylalkyl) group or the group ##STR56## in which p is as defined above; and, when n is 4, an alkanetetrayl group, a tetrakis(alkoxycarbonyl)-alkane-tetrayl group or an alkanetetrayl-tetrakis(oxycarbonylalkyl) group. R.sub.10 represents an alkyl group, a cyanoalkyl group, a hydroxyalkyl group, an alkoxyalkyl group, an aralkyl group, an acyl group, an alkoxycarbonylalkyl group, an aralkyloxycarbonyl group or nitroso group.
This method will be more fully exemplified by Example 12 and provide, for example, those compounds designated by Nos. 21, 22, 23, 24, 25, 26, 32, 41, 49, 56, 58, 60, 61, 62, 63, 65, 80, 100, 101, 127, 130, 145 - 156, 161 and 164 - 169 hereinabove.
10. The compound (XXIII) is subjected to reduction to produce the compound (XXIV). ##STR57##
In the above formulae, R, n, Y and Z are as defined above.
This method will be more fully exemplified by Example 13 and provide, for example, the compound designated by No. 27 hereinabove.
11. The compound (XXIV) is reacted with the acid halide (R.sub.8 COX.sub.1) in the presence of a base to produce the compound (XXV). ##STR58##
In the above formulae, R, n, X.sub.1, Y, the group R.sub.8 CO and Z are as defined above.
This method will be more fully exemplified by Example 14 and provide, for example, the compound designated by No. 28 hereinabove.
12. The compound (XXIV) is reacted with the halide R.sub.11 X in the presence of a base to produce the compound (XXVI). ##STR59##
In the above formulae, R, n, X.sub.1, Y and Z are as defined above, R.sub.11 represents an alkyl group and R.sub.12 represents hydrogen atom or an alkyl group.
This method will be more fully exemplified by Example 15 and provide, for example, the compound designated by No. 29 hereinabove.
13. The compound (XXVI) is reacted with dialkyl sulfate by heating to produce the compound (XXVII). ##STR60##
In the above formulae, R, R.sub.11 and n are as defined above.
This method will be more fully exemplified by Example 16 and provide, for example, those compounds designated by Nos. 8, 19, 66, 70, 71, 102, 104, 108, 110 and 112 hereinabove.
In still another aspect of this invention, there is provided a synthetic polymer composition stabilized against photo- and thermal-deterioration which contains at least one of the new piperidine derivatives (I) having incorporated therein.
The piperidine derivatives (I) employed as a stabilizer in the present invention may be readily incorporated into the synthetic polymers by any of the various standard procedures commonly utilized in the art. The stabilizer may be incorporated into the synthetic polymers at any desired stage prior to the manufacture of shaped articles therefrom. Thus, for example, the stabilizer in the form of a dry powder may be admixed with the synthetic polymer, or a suspension or emulsion of the stabilizer may be admixed with a solution, suspension or emulsion of the synthetic polymer.
The amount of the piperidine derivatives (I) employed in the synthetic polymer in accordance with the present invention may be varied widely, depending upon the types, properties and particular uses of the synthetic polymer to be stabilized. In general, the piperidine derivatives of the formula (I) may be added in an amount ranging from 0.01 to 5.0% by weight, based on the amount of the synthetic polymer, but the practical range is varied depending upon the type of the synthetic polymer, that is 0.01 to 2.0% by weight, preferably 0.02 to 1.0% by weight for polyolefins, 0.01 to 1.0% by weight, preferably 0.02 to 0.5% by weight for polyvinyl chloride and polyvinylidene chloride, and 0.01 to 5.0% by weight, preferably 0.02 to 2.0% by weight for polyurethane and polyamides.
The present stabilizer may be used alone or in combination with other known antioxidants, ultraviolet absorbents, fillers, pigments and the like.
If desired, two or more of the present stabilizers i.e. the piperidine derivatives of the formula (I) may also be satisfactorily used in this invention.
In order that the invention may be better understood, the following Examples are given solely for the purpose of illustration of this invention. In the Examples, all parts are given by weight unless otherwise indicated and the number of the test compound as used hereinbelow is the same as illustratively shown above.
Examples 1 through 16 describe the preparation of some representative compounds of the piperidine derivative (I) of this invention.
Examples 17 through 29 describe the synthetic polymer compositions having incorporated therein the piperidine derivatives (I) and their stabilizing effects.
EXAMPLE 1
1,3,8-Triaza-3,8-dibenzyl-7,7,9,9-tetramethyl-spiro[4.5]-decane-2,4-dione
To a suspension of 22.5 g. of 1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione in 300 ml. of ethanol was added 6.2 g. of potassium hydroxide and the resulting mixture was heated under reflux for 1 hour. After cooling, acetone was added to the reaction mixture, thereby separating crystalline substance, which was then recovered by filtration to give the potassium salt of the above starting material.
To 5 g. of the potassium salt obtained above was added 30 g. of benzyl chloride and the resulting mixture was heated under reflux for 20 hours. After cooling, the reaction mixture was poured into a 10% aqueous solution of sodium hydroxide and crystalline substance so separated was recovered by filtration and recrystallized from benzene to give the desired product as white crystals melting at 262.degree. - 263.degree. C.
Analysis for C.sub.25 H.sub.31 N.sub.3 O.sub.2 : Calculated: C, 74.10%; H, 7.65%; N, 10.37%. Found: C, 74.33%; H, 7.66%, N, 10.28%. Mass spectrum: M.sup.+ m/e 405 (Calculated 405).
EXAMPLE 2
1,3,8-Triaza-7,7,9,9-tetramethyl-3,8-di(2-propynyl)-spiro[4.5]-decane-2,4-d ione
To a mixture of 2.6 g. of potassium salt of 1,3,8-triaza-7, 7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 2.6 g. of 2-propynyl bromide and 1.4 g. of potassium carbonate was added 20 ml. of dimethylformamide and the resulting mixture was heated at 80.degree. - 90.degree. C. for 15 hours. After completion of the reaction, the reaction mixture was concentrated and the concentrate was extracted with benzene. The benzene extract was again concentrated and the residual crystalline substance was recrystallized from aqueous ethanol to give the desired product as white crystals melting at 198.degree.-200.degree. C.
Analysis for C.sub.17 H.sub.23 N.sub.3 O.sub.2 : Calculated: C, 67.75%; H, 7.69%; N, 13.94%. Found: C, 67.70%; H, 7.73%; N, 13.89%.
EXAMPLE 3
8-Allyl-1,3,8-triaza-7,7,9,9-tetramethyl-3-n-octyl-spiro[4.5]-decane-2,4-di one
To a mixture of 17 g. of 1,3,8-triaza-7,7,9,9-tetramethyl-3-n-octyl-spiro[4.5]decane-2,4-dione and 16 g. of allyl chloride were added 20 ml. of triethylamine and 20 ml. of dimethylformamide. The resulting mixture was heated under reflux for 20 hours.
After completion of the reaction, the reaction mixture was concentrated, the residue was washed with an 10% aqueous potassium carbonate solution and extracted with benzene. The benzene extract was subjected to a column chromatography on alumina and the resulting crystalline substance was recrystallized from n-hexane to give the desired product as white crystals melting at 123.degree. - 124.degree. C.
Analysis for C.sub.22 H.sub.39 N.sub.3 O.sub.2 : Calculated: C, 70.00%; H, 10.35%; N, 11.15%. Found: C, 69.74%; H, 10.40%; N, 11.39%.
EXAMPLE 4
1,3,8-Triaza-8-benzyl-7,7,9,9-tetramethyl-3-n-octyl-spiro[4.5]-decane-2,4-d ione
A mixture of 2 g. of 1,3,8-triaza-7,7,9,9-tetramethyl-3-n-octyl-spiro[4,5]decane-2,4-dione, 10 g. of benzyl chloride and 1 g. of potassium carbonate was heated under reflux for 15 hours. After cooling, the reaction mixture was added to an 10% aqueous potassium carbonate solution and extracted with benzene. The benzene solution so obtained was washed with water, dried over anhydrous sodium sulfate and then concentrated. The residual crystalline substance was recrystallized from petroleum ether to give the desired product as white crystals melting at 167.degree.-168.degree. C.
Analysis for C.sub.26 H.sub.41 N.sub.3 O.sub.2 : Calculated: C, 73.02%; H, 9.66%; N, 9.83%. Found: C, 72.83%; H, 9.53%; N, 10.00%. IR spectrum (Nujol mull): .nu..sub.NH 3380, .nu..sub.C=O 1780, 1713 cm.sup.-1. Mass spectrum: M.sup.+ m/e 567 (Calculated: 567)
EXAMPLE 5
1,3,8-Triaza-3-butyl-8-(2,3-epoxypropyl)-7,7,9,9-tetramethylspiro[4.5]decan e-2,4-dione
A solution of 20.0 g. of 1,3,8-triaza-3-butyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione in 40 g. of epichlorohydrin was refluxed with stirring for 15 hours. After completion of the reaction, excess epichlorohydrin was removed by distillation under reduced pressure and the residue was dissolved in 200 ml. of ether. The resulting solution was washed with an 20% aqueous solution of potassium carbonate and then with water. After drying over anhydrous sodium sulfate, the ether was distilled off to give the desired product as crude crystalline substances which were then recrystallized from ethyl acetate, thereby yielding the desired product in pure state as white crystals melting at 125.degree. - 128.degree. C.
Analysis for C.sub.17 H.sub.27 N.sub.3 O.sub.3 : Calculated: C, 63.52%; H, 8.47%; N, 13.07%. Found: C, 63.49%; H, 8.51%; N, 13.15%.
EXAMPLE 6
1,3,8-Triaza- 1,3,8-tribenzyl-7,7,9,9-tetramethyl-spiro[4.5]-decane-2,4-dione
To 2 g. of 1,3,8-triaza--3,8-dibenzyl-7,7,9,9-tetramethylspiro[4.5]decane-2,4-dione were added 1 g. of sodium hydride and 40 ml. of xylene and the resulting mixture was heated under reflux for 5.5 hours. Then, 5.25 g. of benzyl chloride was added to the mixture and the mixture so obtained was heated under reflux for further 10 hours. After cooling, insoluble materials were filtered off from the reaction mixture and the filtate was concentrated. To the residue was added 10% aqueous hydrochloric acid and the resulting mixture was washed with ether. The aqueous layer was separated from the organic layer and neutralized by addition of potassium carbonate followed by extraction with benzene. The benzene extract was concentrated and the residual crystalline substance was recrystallized from n-hexane to give the desired product as white crystals melting at 135.degree. - 136.degree. C.
Analysis for C.sub.32 H.sub.37 N.sub.3 O.sub.2 : Calculated: C, 77.54%; H, 7.52%; N, 8.48%. Found C, 77.42%; H, 7.91%; N, 8.50%.
EXAMPLE 7
4,4'-Bis[1,3,8-triaza-7,7,9,9-tetramethyl-2-oxo-8-(2-propynyl)-4-(2-propyny limino)-spiro[4.5]-3-decyl]diphenylmethane
To a mixture of 1 g. of 4,4'-bis(1,3,8-triazo-4-imino-7,7,9,9-tetramethyl-2-oxo-spiro-[4.5]-3-decy l) diphenylmethane, 0.9 g. of 2-propynyl bromide and 1 g. of sodium carbonate was added 10 ml. of dimethylformamide and the resulting mixture was heated at 140.degree.-150.degree. C. for 12 hours. After completion of the reaction, the dimethylformamide was distilled off, the residue was washed with water and then benzene and finally recrystallized from dimethylformamide to give the desired product as pale yellow crystals not melting at 250.degree. C.
Analysis for C.sub.47 H.sub.56 N.sub.8 O.sub.2 : Calculated: C, 73.79%; H, 7.38%; N, 14.65%. Found: C, 73.86%; N, 7.45%; N, 14.54%. IR spectrum (Nujol mull): .nu..sub.NH 3300 cm.sup.-1, .nu..sub.C=O 2100 cm.sup.-1 ; .nu..sub.C=O 1720 cm.sup.-1, .nu..sub.C=N 1675 cm.sup.-1
EXAMPLE 8
1,3,8-Triaza-3-butyl-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dione
To 281 g. of 1,3,8-triaza-3-butyl-7,7,9,9-tetramethylspiro[4.5]decane-2,4-dione was added 256 g. of 90% formic acid and to the resulting mixture was added dropwise at 20.degree. - 30.degree. C. over 1 hour 162 g. of 37% formaldehyde. After completion of the dropwise addition, the mixture so obtained was refluxed with stirring by gradual heating for about 7 hours, at the end of which evolution of gaseous carbon dioxide ceased.
After completion of the reaction, the reaction mixture was cooled, diluted with 800 ml. of water and then neutralized to a pH of 9 to 9.5 with an 45% aqueous sodium hydroxide solution. Crystalline substances thus separated were recovered by filtration, washed with water and dried. Recrystallization from methanol gave the desired product as white crystals melting at 135.degree. - 137.degree. C.
Analysis for C.sub.16 H.sub.29 N.sub.3 O.sub.2 : Calculated: C, 65.05%; H, 9.89%; N, 14.22%. Found: C, 65.05%; H, 9.93%; N, 14.21%.
EXAMPLE 9
1,3,8-Triaza-8-hydroxyethyl-7,7,9,9-tetramethyl-3-n-octylspiro[4.5]decane-2 ,4-dione
Into a sealed tube were charged 5.7 g. of 1,3,8-triaza-7,7,9,9-tetramethyl-3-n-octyl-spiro[4.5]decane-2,4-dione, 25 ml. of methanol and 0.1 ml. of hydrochloric acid. Then, 1.7 g. of ethylene oxide was added thereto. The tube was sealed and heated at 103.degree. C. for 3 hours. After completion of the reaction, the reaction mixture was concentrated and the residue was recrystallized from ligroin to give the desired product as white crystals melting at 138.degree. 139.degree. C.
Analysis for C.sub.21 H.sub.39 N.sub.3 O.sub.3 : Calculated: C, 66.11%; H, 10.30%; N, 11.01%. Found: C, 65.99%; H, 10.55%; N, 10.92%.
EXAMPLE 10
1,3,8-Triaza-3,8-bis(2-hydroxyethyl)-7,7,9,9-tetramethyl-spiro[4.5]decane-2 ,4-dione
A mixture of 4.5 g. of 1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione, 20 ml. of methanol and 0.2 of hydrochloric acid was charged into a sealed tube. To the tube was then charged 5 g. of ethylene oxide. After sealing the tube, the mixture was heated at 110.degree. C. for 5 hours. After completion of the reaction, insoluble substances were filtered off and the filtrate was concentrated. The residue was recrystallized from a mixture of methanol and ether to give the desired product as colorless needles melting at 188.degree. - 190.degree. C.
Analysis for C.sub.15 H.sub.27 N.sub.3 O.sub.4 : Calculated: C, 57.51%; H, 8.69%; N, 13.42%. Found: C, 57.63%; H, 8.55%; N, 13.40%.
EXAMPLE 11
1,3,8-Triaza-3,8-bis(2-p-chlorobenzyloxyethyl)-7,7,9,9-tetramethyl-spiro[4. 5]decane-2,4-dione
To a suspension of 2.5 g. of 1,3,8-triaza-3,8-bis(2-hydroxyethyl)-7,7,9,9-tetramethyl-spiro[4.5]decane- 2,4-dione and 3.3 g. of potassium carbonate in 30 ml. of benzene was added 4.4 g. of p-chlorobenzoyl chloride at room temperature. The resulting mixture was stirred at that temperature for 2 hours and heated under reflux for additional 2 hours. After cooling, the reaction mixture was washed with water, dried over anhydrous sodium sulfate and the benzene was distilled off. The residue so obtained was recrystallized from ethyl acetate to give the desired product as white crystals melting at 202.degree. - 202.5.degree. C.
Analysis for C.sub.29 H.sub.33 N.sub.3 O.sub.6 Cl: Calculated: C, 58.98%; H, 5.59%; N, 7.11%; Cl, 12.01%. Found: C, 58.69%; H, 5.80%; N, 6.89%; Cl, 12.36%. IR spectrum (Nujol mull): .nu..sub.C=O 1768, 1729, 1710 cm.sup.-1.
EXAMPLE 12
1,3,8-Triaza-3-(2,3-epoxypropyl)-7,7,8,9,9-pentamethyl-spiro-[4.5]decane-2, 4-dione
In 100 ml. of water was dissolved 2.4 g. of sodium hydroxide and to the resulting solution was added with stirring 12.0 g. of 1,3,8-triaza-7,7,8,9,9-pentamethyl-spiro[4.5]-decane-2.4-dione to form the corresponding sodium salt in situ. To the mixture was then added 0.56 g. of epichlorohydrin and the resulting mixture was stirred at room temperature for 60 hours. The crystalline substance separated in situ was recovered by filtration and washed with water to give the desired product as crude crystals, which were then dissolved in 150 ml. of toluene with heating and impurities were filtered off and the filtrate was cooled to give the desired product as white crystals melting at 174.degree. - 176.degree. C.
Analysis for C.sub.15 H.sub.25 N.sub.3 O.sub.3 : Calculated: C, 60.99%; H, 8.53%; N, 14.23%. Found: C, 60.77%; H, 8.42%; N, 14.45%.
EXAMPLE 13
8-Amino-1,3,8-triaza-3-butyl-7,7,9,9-tetramethyl-spiro[4.5]-decane-2,4-dion e
To 9.3 g. of 1,3,8-triaza-3-butyl-7,7,9,9-tetramethyl-8-nitroso-spiro[4.5]decane-2,4-di one were added 11.2 g. of zinc powder and 35 ml. of water and to the resulting mixture was added 25 ml. of 85% acetic acid. The mixture so obtained was heated at 60.degree. - 65.degree. C. for 1.5 hours. After cooling, sodium hydroxide was added to the reaction mixture, which was then extracted with benzene. The benzene extract was dried over anhydrous sodium sulfate and concentrated. The residue was recrystallized from petroleum benzine to give the desired product as white crystals melting at 154.degree. - 156.degree. C.
Analysis for C.sub.15 H.sub.28 N.sub.4 O.sub.2 : Calculated: C, 60.78%; N, 9.52%; N, 18.90%. Found: C, 60.50%; H, 9.57%; N, 18.69%. IR spectrum (Nujol mull): .nu..sub.C=O 1770, 1708 cm.sup.-1
EXAMPLE 14
1,3,8-Triaza-8-benzamido-3-butyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-d ione
To a solution of 2 g. of 8-amino-1,3,8-triaza-3-butyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dion e and 2 g. of triethylamine in 50 ml. of benzene was added 1.2 g. of benzoyl chloride and the resulting mixture was stirred at 40.degree. - 50.degree. C. for 5 hours. After completion of the reaction, the reaction mixture was concentrated and to the residue was added water followed by filtration. The crystalline substances so separated were recrystallized from benzene to give the desired product as white crystals melting at 235.degree. - 236.degree. C.
Analysis for C.sub.22 H.sub.32 N.sub.4 O.sub.3 : Calculated: C, 65.97%; H, 8.05%; N, 13.99%. Found: C, 65.61%; H, 7.99%; N, 13.94%. IR spectrum (Nujol mull): .nu..sub.C=O 1762, 1710, 1690 cm.sup.-1
EXAMPLE 15
1,3,8-Triaza-3-butyl-8-ethylamino-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4- dione
To a solution of 0.45 g. of 8-amino-1,3,8-triaza-3-butyl-7,7,9,9-tetramethyl-spiro[4.5]-decane-2,4-dio ne and 2 g. of potassium carbonate in 10 ml. of dimethylformamide was added 1 g. of ethyl iodide and the resulting mixture was heated at 100.degree. - 105.degree. C. for 8 hours. After completion of the reaction, the reaction mixture was concentrated and to the residue was added water followed by filtration. The crystalline substances so separated were recrystallized from petroleum benzine to give the desired product as white crystals melting at 138.degree. - 139.degree. C.
Analysis for C.sub.17 H.sub.32 N.sub.4 O.sub.2 : Calculated: C, 62.93%; H, 9.94%; N, 17.27%. Found: C, 63.20%; N, 10.09%; N, 17.01%. Mass spectrum: M.sup.+ 324 (Calculated Molecular Weight 324.46)
EXAMPLE 16
1,6-Bis (1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)hexane
To a solution of 2.66 g. of 1,6-bis(1,3,8-triaza-7,7,9,9-tetramethyl-2,4-dioxo-spiro[4.5]-3-decyl)hexa ne and 3.2 g. of sodium hydroxide in 50 ml. of dioxane was added 5 g. of dimethyl sulfate and the resulting mixture was heated at 60.degree. - 65.degree. C. for 3 hours. After completion of the reaction, the reaction mixture was concentrated and the residue was extracted wth benzene. The benzene extract was washed with water, dried over anhydrous sodium sulfate and then concentrated. The residue was recrystallized from petroleum benzine to give the desired product as white crystals melting at 125.degree.-126.degree. C.
Analysis for C.sub.32 H.sub.56 N.sub.6 O.sub.4 : Calculated: C, 65.27%; H, 9.59%; N, 14.27%. Found: C, 65.57%; H, 9.55%; N, 13.95%. IR spectrum (Nujol mull): .nu..sub.C=O 1762, 1700 cm.sup.-1.
By utilizing any suitable procedure of those set forth in the above Examples, the following compounds were prepared;
1,3,8-triaza-3,7,7,8,9,9-hexamethyl-spiro [4.5] decane-2,4-dione (m.p. 209.degree.-210.degree. C),
1,3,8-triaza-7,7,8,9,9-pentamethyl-3-octyl-spiro [4.5] decane-2,4-dione (m.p. 127.degree.-128.degree. C),
1,3,8-triaza-3,8-diethyl-7,7,9,9-tetramethyl-spiro [4.5]-decane-2,4-dione (m.p. 162.degree.-164.degree. C),
1,3,8-triaza-3-butyl-8-ethyl-7,7,9,9-tetramethyl-spiro [4.5]-decane-2,4-dione (m.p. 105.degree.-107.degree. C),
1,3,8-triaza-8-ethyl-7,7,9,9-tetramethyl-3-octyl-spiro [4.5-decane-2,4-dione (m.p. 137.degree.-138.degree. C),
1,3,8-triaza-1,3,7,7,8,9,9-heptamethyl-spiro [4.5] decane-2,4-dione (m.p. 81.degree.-82.degree. C),
1,3,8-triaza-3-butyl-1,8-diethyl-7,7,9,9-tetramethyl-spiro [4.5]-decane-2,4-dione (colorless liquid after chromatography),
1,3,8-triaza-1,butyl-8-ethyl-7,7,9,9-tetramethyl-3-octyl-spiro-[4.5] decane-2,4-dione (b.p. 195.degree.-200.degree. C./3 mm Hg.),
3,8-diaza-7,7,8,9,9-pentamethyl-3-octadecyl-1-oxa-spiro [4.5] -decane-2,4-dione (m.p. 83.degree.-84.degree. C),
1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-3-octadecyl-spiro-[4.5] decane- 2,4-dione (m.p. 111.degree.-113.degree. C), 1,3,8-triaza-3,7,7,8,9,9-hexamethyl-1-ethoxymethyl-spiro[4.5]-decane-2,4-d ione (b.p. 161.degree.-162.degree. C./0.9mmHg.),
1,3,8-triaza-3,7,7,8,9,9-hexamethyl-1-(2-phenoxyethyl)-spiro-[4.5]decane-2, 4-dione (m.p. 92.degree.-93.degree. C.),
1,3,8-triaza-3,7,7,8,9,9-hexamethyl-1-(2-vinyloxyethyl)-spiro-[4.5]decane-2 ,4-dione (b.p. 171.gtoreq.-172.degree. C./0.9mmHg.),
1,3,8-triaza-3-butyl-8-(2-hydroxyethyl)-7,7,9,9-tetramethyl-spiro[4.5]decan e-2,4-dione (m.p. 112.degree.-114.degree. C.),
1,3,8-triaza-8-(2-cyanoethyl)-1,3,7,7,9,9-hexamethyl-spiro-[4.5]decane-2,4- dione (m.p. 23.degree.-26.degree. C.),
1,3,8-triaza-8-(2-ethoxyethyl)-3,7,7,9,9-pentamethyl-spiro-[4.5]decane-2,4- dione (m.p. 135.degree.-136.degree. C.),
1,3,8-triaza-8-cinnamoyl-3,7,7,9,9-pentamethyl-spiro[4.5]-decane-2,4-dione (m.p. 279.degree.-280.degree. C.),
1,3,8-triaza-3,7,7,9,9-pentamethyl-8-nitroso-spiro[4.5]decane-2,4-dione (m.p. 228.degree.-229.degree. C.),
1,3,8-triaza-3-butyl-7,7,9,9-tetramethyl-8-nitroso-spiro-[4.5]decane-2,4-di one (m.p. 131.degree.-132.degree. C.),
3-allyl-1,3,8-triaza-7,7,8,9,9-pentamethyl-spiro[4.5]decane-2,4-dione (m.p. 137.degree.-139.degree. C.),
3-allyl-1,3,8-triaza-8-ethyl-7,7,9,9-tetramethyl-spiro[4.5]-decane-2,4-dion e (m.p. 166.degree.-167.degree. C.),
1,3-diallyl-1,3,8-triaza-7,7,8,9,9-pentamethyl-spiro[4.5]-decane-2,4-dithio ne (b.p. 174.degree.-176.degree. C./3mmHg.),
3,8-diallyl-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione (m.p. 154.degree.-155.degree. C.),
3,8-diallyl-1,3,8-triaza-1-benzyl-7,7,9,9-tetramethyl-spiro-[4.5]decane-2,4 -dione (b.p. 205.degree.-207.degree. C./1mmHg.),
3-allyl-1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]deca ne-2,4-dione (m.p. 162.degree.-164.degree. C.),
3-allyl-1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-spiro[4.5]-decane-2,4-dio ne (m.p. 189.degree.-190.degree. C.),
1,3,8-triaza-8(2,3-epoxypropyl)-7,7,9,9-tetramethyl-3-(2-propynyl)-spiro[4. 5]decane-2,4-dione (m.p. 193.5.degree.-196.5.degree. C.),
1,3,8-triaza-8-cyanomethyl-3-(3-hydroxypyropyl)-7,7,9,9-tetramethyl-spiro[4 .5]decane-2,4-dione (m.p. 191.degree.-192.degree. C.),
1,3,8-triaza-1,7,7,9,9-pentamethyl-3,8-bis(2-methoxyethyl)-spiro[4.5]decane -2,4-dione (m.p. 34.degree.-36.degree. C.),
1,3,8-triaza-3-ethoxymethyl-7,7,8,9,9-pentamethyl-spiro[4,5decane-2,4-dione (m.p. 176.degree.-177.degree. C.),
1,3,8-triaza-8-ethyl-7,7,9,9-tetramethyl-3-(2-vinyloxy-ethyl)-spiro[4.5]-de cane-2,4-dione (m.p. 149.degree.-150.degree. C.),
8-allyl-1,3,8-triaza-7,7,9,9-tetramethyl-3-(2-phenoxyethyl)-spiro[4.5]decan e-2,4-dione (m.p. 175.degree.-176.degree. C.),
3-(2-acetoxyethyl)-1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-spiro[4.5]deca ne-2,4-dione (m.p. 191.degree.-191.5.degree. C.),
3,8-bis(2-acetoxyethyl)-1,3,8-traiza-7,7,9,9-tetramethyl-spiro[4.5]decane-2 ,4-dione (m.p. 149.degree.-150.degree. C.),
1,3,8-triaza-2,2,6,6-tetramethyl-3,8-bis(2-octanoyloxyethyl)-spiro[4.5]deca ne-2,4-dione (m.p. 69.degree.-70.degree. C.),
8-acryloyl-3-(2-acryloyloxyethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4. 5]decane-2,4-dione (m.p. 173.degree.-174.degree. C.),
3,8-bis(2-acryloyloxyethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]deca ne-2,4-dione (m.p. 119.degree.-120.degree. C.),
1,3,8-triaza-3-(2-benzoyloxyethyl)-8-ethyl-7,7,9,9-tetramethyl-spiro[4.5]de cane-2,4-dione (m.p. 166.degree.-167.degree. C.), 1,3,8-triaza-3,8-bis(2-benzoyloxyethyl)-7,7,9,9-tetramethyl-spiro[4.5]deca ne-2,4-dione (m.p. 187.degree.-188.5.degree. C.), 1,3,8-triaza-7,7,9,9-tetramethyl-3,8-bis(2-m-toluoyloxyethyl)-spiro[4.5]de cane-2,4-dione (m.p. 152.degree.-153.degree. C.),
3,8-bis(2-o-anisoyloxyethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]dec ane-2,4-dione (m.p. 141.degree.-142.degree. C.),
1,3,8-triaza-3,8-bis(2-cyanoethyl)-7,7,9,9-tetramethyl-spiro-[4.5]decane-2, 4-dione (m.p. 126.degree.-127.degree. C.),
1,3,8-triaza-7,7,8,9,9-pentamethyl-3-(2methylthioethyl)-spiro[4.5]decane-2, 4-dione (m.p. 138.degree.-139.degree. C.),
1,3,8-triaza-3,8-bis(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]decane- 2,4-dione (m.p. 164.5.degree.-166.5.degree. C.),
1,3,9-triaza-3-ethoxycarbonylmethyl-7,7,8,9,9-pentamethyl-spiro[4.5]decane- 2,4-dione (m.p. 145.degree.-146.degree. C.),
1,3,8-triaza-3-ethoxycarbonyl-7,7,8,9,9-pentamethyl-spiro-[4.5]decane-2,4-d ione (m.p. 133.degree.-134.degree. C.),
1,3,8-triaza-3-benzyl-7,7,8,9,9-pentamethyl-spiro[4.5]-decane-2,4-dione (m.p. 206.degree.-208.5.degree. C.),
1,3,8-triaza-3-benzyl-7,7,9,9-tetramethyl-8-octyl-spiro[4.5]-decane-2,4-dio ne (m.p. 175.degree.-176.degree. C.),
1,3,8-triaza-3-benzyl-1,8-diethyl-7,7,9,9-tetramethyl-spiro-[4.5]decane-2,4 -dione (colorless liquid after chromatography),
1,3,8-triaza-1,3-dibenzyl-7,7,8,9,9-pentamethyl-spiro[4.5]-decane-2,4-dithi one (m.p. 101.degree.-102.degree. C.),
1,3,8-triaza-7,7,9,9-tetramethyl-3-phenethyl-8-(2-propynyl)spiro[4.5]decane -2,4-dione (m.p. 194.degree.-195.degree. C.),
1,3,8-triaza-3,8-dibenzyl-1,7,7,9,9-pentamethyl-spiro[4.5]-decane-2,4-dione (m.p. 132.degree.-133.degree. C.),
1,3,8-triaza-3,8-dibenzyl-1-butyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4- dione (m.p. 133.5.degree.-134.degree. C.),
1-(2-acetoxyethyl)-1,3,8-triaza-3,8-dibenzyl-7,7,9,9-tetramethylspiro[4.5]d ecane-2,4-dione (colorless liquid after chromatography),
1,3,8-triaza-1-(2-benzoyloxyethyl)-3,8-dibenzyl-7,7,9,9-tetramethyl-spiro[4 .5]decane-2,4-dione (colorless liquid after chromatography),
1,3,8-triaza-3,8-dibenzyl-7,7,9,9-tetramethyl-1-(2-propynyl)-spiro[4.5]deca ne-2,4-dione (m.p. 123.5.degree.-124.5.degree. C.),
1,3,8-triaza-3-benzyl-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-spiro[4.5]dec ane-2,4-dione (m.p. 197.degree.-199.5.degree. C.),
1,3,8-triaza-7,7,8,9,9-pentamethyl-3-(p-methybenzyl)-spiro-[4.5]decane-2,4- dione (m.p. 162.degree.-163.degree. C.),
1,3,8-triaza-3-(p-chlorobenzyl)-7,7,8,9,9-pentamethyl-spiro-[4.5]decane-2,4 -dione (m.p. 170.5.degree.-171.5.degree. C.),
8-acryloyl-1,3,8-triaza-3-benzyl-7,7,9,9-tetramethyl-spiro-[4.5]decane-2.4- dione (m.p. 131.degree.-132.degree. C.),
1,3,8-triaza-3-cyclohexyl-7,7,8,9,9-pentamethyl-spiro[4.5]-decane-2,4-dione (m.p. 186.degree.-188.degree. C.),
1,3,8-triaza-3-cyclohexyl-8-(2,3-epoxypropyl)-7,7,9,9-tetramethylspiro[4.5] decane-2,4-dione (m.p. 179.degree.-182.5.degree. C.),
1,3,8-triaza-8-benzyl-3-cyclohexyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4 -dione (m.p. 237.degree.-238.degree. C.),
1,3,8-triaza-8-benzyl-4-benzylimino-3-cyclohexyl-7,7,9,9-tetramethyl-spiro[ 4.5]decane-2-one (m.p. 203.degree.-204.degree. C.),
1,3,8-triaza-7,7,8,9,9-pentamethyl-3-phenyl-spiro[4.5]decane-2,4-dione (m.p. 156.degree. C.),
1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-3-phenyl-spiro[4.5]dec ane-2,4-dione (m.p. 179.degree.-182.5.degree. C.),
1,3,8-triaza-4-imino-7,7,8,9,9-pentamethyl-3-phenyl-spiro-[4.5]decane-2-one (m.p. 140.degree.-141.degree. C.),
1,3,8-triaza-7,7,8,9,9-pentamethyl-4-methylimino-3-phenyl-spiro-[4.5]decane -2-one (m.p. 204.degree. C.),
1,3,8-triaza-4-imino-7,7,8,9,9-pentamethyl-3-phenyl-spiro-[4.5]decane-2-thi one (m.p. 140.degree.-142.degree. C.),
8-allyl-4-allylimino-1,3,8-triaza-7,7,9,9-tetramethyl-3-phenyl-spiro[4.5]de cane-2-one (m.p. 120.degree.-121.degree. C.),
1,3,8-triaza-8-(2-hydroxyethyl)-4-(2-hydroxyethylimino)-7,7,9,9-tetramethyl -3-phenyl-spiro[4.5]decane-2-one (m.p. 225.degree.-226.degree. C.),
1,3,8-triaza-1,7,7,9,9-pentamethyl-8-(2-methoxyethyl)-4-(2-methoxyethylmino )-3-phenyl-spiro[4.5]decane-2-one (m.p. 131.degree.-132.degree. C.),
1,3,8-triaza-1,8-dibenzyl-7,7,9,9-tetramethyl-3-phenyl-spiro-[4.5]decane-4- one-2-thione (m.p. 202.degree.-203.degree. C.),
3,8-diaza-4-imino-7,7,8,9,9-pentamethyl-3-(.alpha.-naphthyl)-1-oxa-spiro[4. 5]decane-2-thione (m.p > 260.degree. C.),
1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-3-(p-tolyl)-spiro-[4.5]decane-2,4 -dione (m.p. 259.degree.-260.degree. C.),
3,8-diaza-7,7,8,9,9-pentamethyl-1-oxa-3-(p-tolyl)-spiro[4.5]-decane-2,4-dio ne (m.p. 166.degree.-167.degree. C.),
3,8-diaza-4-imino-7,7,8,9,9-pentamethyl-1-oxa-3-(p-tolyl)-spiro[4.5]decane- 2-one (m.p. 163.degree.-164.degree. C.),
3,8-diaza-3-(3-(o-chlorophenyl)-7,7,8,9,9-pentamethyl-1-oxa-spiro-[4.5]deca ne-2,4-dione (m.p. 190.degree.-191.degree. C.),
3,8-diaza-3-(o-chlorophenyl)-7,7,8,9,9-pentamethyl-4-methyl-imino-1-oxa-spi ro[4.5]decane-2-one (m.p. 181.degree.-182.degree. C.),
1,3,8-triaza-7,7,8,9,9-pentamethyl-3-diphenoxyphosphinyl-spiro-[4.5]decane- 2,4-dithione (m.p. 176.degree.-177.degree. C.),
1,3-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro-[4.5]-3-decyl)p ropane (m.p. 117.degree.-118.degree. C.),
1,6-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro-[4.5]-3-decyl)he xane (m.p. 231.degree.-234.degree. C.),
1,6-bis[1,3,8-triaza-7,7,9,9-tetramethyl-2,4-dioxo-8-(2-propynyl)-spiro[4.5 ]-3-decyl]hexane (m.p. 231.degree.-232.degree. C),
1,6-bis[1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-2,4-dioxo-spir o[4.5]-3-decyl]hexane (m.p. 263.5.degree.-268.5.degree. C.),
1,6-bis(1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-2,4-dioxo-spiro[4.5]-3-de cyl)hexane (m.p. 281.degree.-283.degree. C.),
1,4-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro[4.5]-3-decyl)-t rans-2-butene (m.p. 175.degree.-177.degree. C.),
2,2'-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro-[4.5]-3-decyl)d iethylether (m.p. 235.degree.-236.degree. C.),
2,2'-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro-[4.5]-3-decyl) diethylether (m.p. 92.degree.-93.degree. C.),
.alpha.,.alpha.'-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro-[4. 5]-3-decyl)-p-xylenen (m.p. 293.degree.-295.degree. C.),
.alpha.,.alpha.'-bis(1,3,8-triaza-1,7,7,8,9,9-hexamethyl-2,4-dioxo-spiro-[4 .5]-3-decyl)-p-xylene (m.p. 197.degree.-199.degree. C.),
.alpha.,.alpha.'-bis[1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-2 ,4-dioxo-spiro[4.5]-3-decyl]-p-xylene (m.p. 254.degree.-258.degree. C.),
.alpha.,.alpha.'-bis(1,3,8-triaza-8-benzyl-7,7,9,9-tetramethyl-2,4-dioxo-sp iro[4.5]-3-decyl)-p-xylene (m.p.>300.degree. C),
2,4-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro-[4.5]-3-decyl)to luene (m.p.>300.degree. C),
2,4-bis(3,8-diaza-4-imino-7,7,8,9,9-pentamethyl-1-oxa-2-oxo-spiro[4.5]-3-de cyl)toluene (m.p. 243.degree.-245.degree. C),
4,4'-bis(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro-[4.5]-3-decyl)d iphenylmethane (m.p. 238.degree.-242.4.degree. C),
4,4'-bis[1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-2,4-dioxo-spi ro[4.5]-3-decyl]diphenylmethane (m.p. 232.degree.-236.degree. C),
bis[2-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro-[4.5]-3-decyl)eth y]adipate (m.p. 206.degree.-210.degree. C),
bis[2-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro-[4.5]-3-decyl)eth yl]terephthalate (m.p. 272.degree.-273.degree. C),
tris[2-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro-[4.5]-3-decyl)et hyl]trimellitate (m.p. 289.degree.-292.degree. C. with decomposition),
2,2',2"-tris[1,3,8-triaza-8-(2,3-epoxypropyl)-7,7,9,9-tetramethyl-2,4-dioxo -spiro[4.5]-3-decyl]triethyl-isocyanurate (m.p. 215.degree.-220.degree. C),
tetrakis[2-(1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]-3-decyl )ethyl]pyromellitate (m.p.>250.degree. C),
pentaerythritol tetrakis (1,3,8-triaza-7,7,8,9,9-pentamethyl-2,4-dioxo-spiro[4.5]-3-decylmethylcarb oxylate) (m.p. 250.degree. C),
1,3,8-triaza-3-octyl-8-acetyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dion e (m.p. 81.degree. C),
1,3,8-triaza-3-octyl-8-acryloyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-di one (m.p. 74.degree. C),
1,3,8-triaza-3-butyl-8-octyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4-dione (m.p. 132.degree. C),
1,3,8-triaza-3-butyl-8-acetoxyethyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2, 4-dione (m.p. 137.degree. C),
1,3,8-triaza-3-butyl-8-ethoxycarbonylmethyl-7,7,9,9-tetramethyl-spiro[4.5]d ecane-2,4-dione (m.p. 112.degree. C),
1,3,8-triaza-3-cyclohexyl-8-propyl-7,7,9,9-tetramethyl-spiro[4.5]decane-2,4 -dione (m.p. 175.degree. C),
3-butyl-8-methoxyethyl-7,7,9,9-tetramethyl-1,3,8-triaza-spiro[4.5]-decane-2 ,4-dione (m.p. 112.degree. C),
3-stearyl-8-allyl-7,7,9,9-tetramethyl-1,3,8-triaza-spiro[4.5]decane-2,4-dio ne (m.p. 91.degree. C),
3,8-bis(octoxycarbonylmethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5]de cane-2,4-dione (m.p. 44.degree.-45.5.degree. C)
3,8-bis(2-hydroxy-2-phenylethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[4.5 ]decane-2,4-dione (m.p. 215.degree.-217.degree. C) and
3,8-bis(2-benzoyloxy-2-phenylethyl)-1,3,8-triaza-7,7,9,9-tetramethyl-spiro[ 4.5]decane-2,4-dione (m.p. 130.degree.-132.degree. C)
EXAMPLE 17
Into 100 parts of polypropylens ["Noblen JHH-G", trade name, available from Mitsui Toatsu Chemicals Inc., Japan, employed after twice recrystallizations from monochlorobenzene] was incorporated 0.25 part of each of the test compounds of this invention indicated below. The resulting mixture was mixed and melted and then molded into a sheet having a thickness of 0.5 mm. under heating and pressure.
As a control, the polypropylene sheet was prepared in a similar manner to that described above without any of stabilizers for comparative purpose.
Then, all of these sheets thus formed were tested for the brittleness time (which means the time, expressed in terms of hour, until the test sheet will become brittle) under ultraviolet ray irradiation at a temperature of 45.degree. C. by means of the fade meter prescribed in Japanese Industrial Standard JIS-1044 entitled "Testing Method of Color Fastness to Light of Dyed Textiles and Dyestuffs," Paragraph 3.8 (in English).
The results are given in the following Table 1.
EXAMPLE 18
Into 100 parts of high-density polyethylene ["Hi-Zex," trade name, available from Mitsui Toatsu Chemicals Inc., Japan, employed after twice recrystallizations from toluol] were incorporated 0.25 part of each of the test compounds of this invention indicated below. The resulting mixture was made into a sheet by the same procedure as in the above Example 17.
The sheet thus formed was tested for the brittleness time by the same test method as in the above Example 17.
The results are given in the following Table 2.
EXAMPLE 19
A number of sheets prepared in the above Examples 17 and 18 were aged under the following aging condition to determine the brittleness time.
AGING TEST
Aging at 120.degree. C. for the polypropylene and 125.degree. C. for the polyethylene in a Geer's aging tester prescribed in Japanese Industrial Standard JIS-K-6301 entitled "Physical Testing Methods for Vulcanized Rubber," Paragraph 6.5 (in English).
The results are given in the following Table 3.
EXAMPLE 20
Into 100 parts of polystyrene ["Styron 666", trade name, available from Asahi-Dow Limited, Japan] was incorporated 0.25 part of each of the test compounds of this invention indicated below. The resulting mixture was made into a sheet having the thickness of 0.5 mm. as shown in the above Example 17.
The sheet thus formed was placed in a fade meter under ultraviolet ray irradiation at a temperature of 45.degree. C. for 100 hours.
Then, infrared spectrum of the sheet was compared at 1700 cm.sup.-1 to determine the increase in a number of carbonyl group.
The results are given in the following Table 4.
EXAMPLE 21
Into 100 parts of polyvinyl chloride ["Geon-103 EP," trade name, available from The Japanese Geon Co., Ltd., Japan] were incorporated 30 parts of ABS resin ["ABS 60," trade name, available from The Japan Synthethic Rubber Co., Ltd., Japan], 3 parts of tribasic lead sulfate, 2 parts of dibasic lead phosphate, 2 parts of lead stearate and 1 part of each of the test compounds of this invention indicated below. The resulting mixture was blended and kneaded for 8 minutes on a kneading roll at 160.degree. C. and then formed into a sheet having a thickness of about 0.5 mm. The sheet was subjected to the exposure to ultraviolet ray for 50 hours and then tested for the retention of ultimate elongation and ultimate tensile strength according to a conventional method.
The results are given in the following Table 5.
EXAMPLE 22
Into 100 parts of polyvinyl chloride ["Geon 103 EP", trade name, available from The Japanese Geon Co., Ltd., Japan] were incorporated 1 part of lead stearate, 0.5 part of dibasic lead phosphite, 0.5 part of barium stearate, 0.5 part of cadmium stearate and 0.2 part of each of the test compounds of this invention indicated below. The resulting mixture was blended and kneaded for 4 minutes on a kneading roll at 180.degree. C. and then formed into a sheet having a thickness of 0.5 mm. The sheet was tested for the discoloration degree thereof by the aging test method set forth below.
AGING TEST
1. Exposure to the sunshine carbon apparatus prescribed in Japanese Industrial Standard JIS Z-0230 entitled "Accelerated Weathering test of Rust Proofing Oils," Paragraph 2 for 600 hours.
2. The sheet was aged for 90 minutes at 170.degree. C. in the Geer's aging tester prescribed in the above Example 19. The results are given in the following Table 6.
EXAMPLE 23
Into 100 parts of 6-nylon ["CM 1011", trade name, available from Toray Industries Inc., Japan, containing no stabilizer] was incorporated 0.25 part of each of the test compounds of this invention indicated below. The resulting mixture was heated and melted and then molded into a film having a thickness of about 0.1 mm. under pressure. The film thus formed was aged under the following aging condition and thereafter subjected to a tensile test to determine the retentions of ultimate tensile strength and ultimate elongation by a standard method.
AGING TEST
1. Exposure to ultraviolet ray for 200 hours in the fade meter described above at 45.degree. C.
2. The sheet was aged for 2 hours at 160.degree. C. in the Geer's aging tester prescribed in the above Example 19.
The results are given in the following Table 7.
EXAMPLE 24
Into 100 parts of polyurethane prepared from polycaprolactone ["E-5080," trade name, available from The Nippon Elastollan Industries Ltd., Japan] was incorporated 0.5 part of each of the test compounds of this invention indicated below. The resulting mixture was heated and melted and then molded into a sheet having a thickness of about 0.5 mm. The sheet thus formed was subjected to the exposure to ultraviolet ray for 15 hours in the fade meter as specified in the above Example 17 at 45.degree. C. and then tested for the retentions of ultimate elongation and ultimate tensile strength as in the above Example 21.
The results are given in the following Table 8.
EXAMPLE 25
Into 100 parts of polyacetal resin ["Delrin 500", trade name, available from Showa Neoprene K. K., Japan] was incorporated 0.5 part of each of the test compounds of this invention indicated below. The resulting mixture was heated and melted at 220.degree. C.
The film thus formed was aged by heating at 222.degree. C. in air for 30 minutes to determine the reduction in weight of the film.
The results are given in the following Table 9.
EXAMPLE 26
Into 100 parts of polyester resin ["Ester-G13", trade name, available from Mitsui Toatsu Chemicals, Inc., Japan] were incorporated 1 part of benzoyl peroxide and 0.2 part of each of the test compounds of this invention indicated below. The resulting mixture was mixed and pre-heated at 60.degree. C. for 30 minutes. Then, the pre-heated mixture was cured by heating at 100.degree. C, for 1 hour to form into a plate having a thickness of 3 mm.
The plate thus formed was subjected to the exposure to the sunshine carbon apparatus for 60 hours and then the coloration degree thereof was determined.
The results are given in the following Table 10.
EXAMPLE 27
Into 100 parts of polyvinylidene chloride resin ["Kureharon DOA", trade name, available from Kureha Chemical Industry Co. Japan] was incorporated 0.1 part of each of the test compounds of this invention indicated below. The resulting mixture was dissolved in an appropriate amount of tetrahydrofuran and the solvent was distilled off to form a sheet having a thickness of about 0.5 mm.
The sheet thus formed was subjected to the exposure to ultraviolet ray irradiation in the fade meter at 45.degree. C. for 5 hours and the coloration degree thereof was determined and compared.
The results are given in the following Table 11.
EXAMPLE 28
Into 100 parts of polyethylene ]"2100 CP", trade name, available from Mitsui Toatsu Chemicals Inc., Japan] were incorporated 0.25 part of each of the test compounds of this invention indicated below and 0.5 part of BHT (2,6-di-tert. butyl-hydroxy toluene). The resulting mixture was heated and melted and then molded into a plate having a thickness of 3 mm.
The plate thus formed was left in a dark place at 60.degree. C. for 3 weeks and then the coloration degree thereof was determined.
The results are given in the following Table 12.
EXAMPLE 29
The substantially same procedure as shown in the above Example 28 was repeated except that polypropylene ]"JHH-G", trade name, available from Mitsui Toatsu Chemicals Inc., Japan, employed after twice recrystallization from monochlorobenzene] was utilized instead of the polyethylene.
The results are given in the following Table 13.
It can be apparent from the above-given results that the piperidine derivatives (I) of this invention exert a high degree of stabilizing effect against thermal- and photodeterioration of various synthetic polymers.