Substituted 5-Acyl-3-Carbamoyl-2-Thienyl Azo Dyes With Aniline, Tetrahydroquinoline, and Benzomorpholine Couplers, Process of Manufacture, and Polyamide Testile Materials Dyed Therewith

This invention concerns certain novel azo compounds and polyamide textile materials dyed therewith. More particularly, this invention concerns monoazo disperse dyes containing novel thiophene diazo components. These dyes produce red to blue shades on polyamide, polyester and cellulose acetate fibers and exhibit markedly improved properties such as fastness and dyeability, particularly on synthetic polyamide fibers.

Our novel compounds have the general formula ##STR2## wherein R.sup.4 is straight or branched lower alkylene, Z is 1-3 heteroatom groups selected from --OH, lower alkanoyloxy, lower alkoxy, lower alkoxycarbonyl, lower alkoxy-alkoxy, mono- or dialkylamino, --CN, carbamoyl, lower alkoxycarbonylamino, formamido, lower alkyl substituted carbamoyl, lower alkanoylamino, hydroxy substituted lower alkoxy, halogen, lower alkylthio, lower alkylsulfonyl, furyl and pyrrolidono, R is selected from straight or branched lower alkyl, phenyl and phenyl substituted with straight or branched lower alkyl, halogen, or straight or branched lower alkoxy, R.sup.2 is hydrogen or lower alkyl, and A is an aniline, tetrahydroquinoline, or benzomorpholine coupler component which may be substituted with a wide variety of groups. The term "lower" as used throughout this specification means 1-6 carbons.

The couplers have the formulae ##STR3## wherein R.sup.6 and R.sup.7 are each selected from hydrogen, fluorine, chlorine, bromine, lower alkyl, cycloalkyl, lower alkoxy, phenoxy, lower alkylthio, arylthio, and radicals having the formula --NH--X--R.sup.13 in which X is --CO--, --COO--, or --SO.sub.2 -- and R.sup.13 is selected from lower alkyl and lower alkyl substituted with halogen, hydroxy, phenoxy, aryl, cyano, cycloalkyl, lower alkylsulfonyl, lower alkylthio, lower alkanoyloxy, and lower alkoxy, and when X is --CO--, R.sup.13 also can be hydrogen, amino, lower alkylamino, lower alkylcarbamoyl, lower dialkylamino, arylamino, aryl, or furyl;

R.sup.8 and R.sup.9 are selected from hydrogen; cycloalkyl; cycloalkyl substituted with one or two groups selected from lower alkyl, --OH, lower alkoxy, halogen and hydroxy substituted lower alkyl; phenyl or phenyl substituted with lower alkyl, lower alkoxy, halogen, lower alkanoylamino, cyano or lower alkoxycarbonyl; straight or branched lower alkenyl; straight or branched alkyl of 1-8 carbons and such alkyl substituted with the following: hydroxy, halogen; cyano; succinimido; glutarimido; phthalimido; 2-pyrrolidono; cyclohexyl; phenyl or phenyl substituted with lower alkyl, lower alkoxy, halogen, lower alkanoylamino, cyano or lower alkoxycarbonyl; lower alkanoylamino; sulfamoyl; lower alkylsulfamoyl; vinylsulfonyl; acrylamido; phthalimidinyl; benzoylsulfonicimidyl; lower alkylsulfonamido; phenylsulfonamido; lower alkoxycarbonylamino; lower alkylcarbamoyloxy; lower alkoxycarbonyl; lower alkoxycarbonyloxy; groups of the formula ##STR4## wherein Y is --NH--, --NH-lower alkyl, --O--, --S--, or --CH.sub.2 O--; --S-R.sup.14 wherein R.sup.14 is lower akyl, phenyl, phenyl substituted with halogen, lower alkyl, lower alkoxy, lower alkanoylamino, cyano, or lower alkoxycarbonyl, pyridyl, pyrimidinyl, benzoxazolyl, benzimidazolyl, benzothiazolyl, triazolyl, or ##STR5## --SO.sub.2 R.sup.13 ; --COOR.sup.13 ; --OXR.sup.13 ; --NH-X-R.sup.13 ; --X-R.sup.13 ; --OCO-R.sup.13 ; --CONR.sup.15 R.sup.15 ; --SO.sub.2 NR.sup.15 R.sup.15 ; wherein R.sup.13 and X are as defined above and each R.sup.15 is selected from H and R.sup.13 ; lower alkoxy; lower alkoxy substituted with hydroxy, cyano, lower alkanoyloxy, or lower alkoxy; phenoxy substituted with one or more of lower alkyl, lower alkoxy or halogen; and R.sup.8 and R.sup.9 can be a single, combined group which, with the nitrogen atom to which each is attached, forms a ring such as pentamethylene, ethyleneoxyethylene, ethylenesulfonylethylene;

R.sup.10, R.sup.11 and R.sup.12 are each selected from hydrogen and lower alkyl; and R.sup.16 is selected from --OH, --Cl, --CONH.sub.2, --CONH-lower alkyl, lower alkoxy, phenoxy, --SR.sup.14, and --OXR.sup.13 wherein R.sup.13 and R.sup.14 are as defined above.

The azo compounds of the invention produce red to blue shades on polyamide, polyester and cellulose acetate fibers, yarns and fabrics when applied thereto according to conventional disperse dyeing procedures. These compounds are especially valuable for dyeing synthetic polyamide fibers on which the compounds exhibit good to excellent dyeability and fastness properties, such as fastness to high humidity ozone, light, crock, washing, gas (nitrogen oxides). The good dyeability of our compounds is manifested by the level shades they produce on synthetic polyamide fibers and their ability to build, i.e., produce significantly heavier shades as increased amounts of dye are applied to a given weight of undyed fibers. The dyes also exhibit improved properties such as migration, transfer and pH stability. This desirable combination of properties which our azo compounds exhibit renders them especially valuable for dyeing carpets made from synthetic polyamide fibers and distinguishes them from known azo compounds containing a thiophene diazo component, for example, those of British Pat. No. 1,427,195.

Following are some exemplary preparations of useful couplers.

A mixture of 2,7-dimethyl-1,2,3,4-tetrahydroquinoline (48.3 g. 0.3 m), potassium carbonate (41.4 g, 0.3 m), and iodoethane (100 g) was heated at reflux for 4 hrs. Water (200 ml) was added and then the organic layer was extracted using chloroform (100 ml). The organic layer was separated and dried over sodium sulfate. Chloroform and excess iodoethane were distilled off to leave essentially pure product (44 g), which was used without further purification.

N-ethyl-m-toluidine (1.0 mole) and epichlorohydrin (225 g) were mixed and allowed to stand three days at room temperature. The reaction mixture was heated at 140.degree.-145.degree. C. for 6 hrs. and then distilled under vacuum. The product (100 g) which boiled at 143.degree. C. at 1.1 mmHg was recovered in 52% of the theoretical yield.

A mixture of 2,7-dimethyl-1,2,3,4-tetrahydroquinoline (32.2 g, 0.2 m), potassium carbonate (15.0 g, 0.11 m), and 2-iodopropane (51 g, 0.3 m) was heated at 90.degree.-95.degree. C. for 5.5 hr. Progress of the reaction was slow. An additional quantity (34.0 g) of iodopropane was added and the mixture refluxed for 24 hrs. longer. Starting material was still evident by thin-layer chromatography. The reaction mixture was drowned into 200 ml water and extracted with chloroform (50 ml). The organic layer was treated with 10 ml of acetic anhydride for 1 hr. at 90.degree.-95.degree. C. to convert the 2,7-dimethyl-1,2,3,4-tetrahydroquinoline into N-acetyl-2,7-dimethyl-1,2,3,4-tetrahydroquinoline, which enables the recovery of the pure product by distillation. The organic layer was distilled under vacuum to give 23.4 g (55% yield) of product which boiled at 85.degree. C. at 0.21.1 mm Hg.

A mixture of the above 2,5-dimethyl-8-methoxyquinoline (260 g, 1.3 m), isopropanol (600 ml), and Raney nickel catalyst (25.0 g) was subjected to 1000 psi hydrogen for 3 hrs. in a stainless steel autoclave. The reaction mixture from the autoclave was filtered to remove the catalyst. Essentially a quantitative yield of product was obtained, after the removal of the isopropanol under vacuum, and the product was used without further purification.

2,5-Dimethyl-8-methoxy-1,2,3,4-tetrahydroquinoline (189 g, 1.0 m) was reacted with ethylene oxide (52.0 g) in an autoclave at 160.degree. C. for 10 hrs. The reaction mixture from the autoclave was distilled under vacuum to yield 169 g (72%) of product which boiled at 150.degree.-138.degree. C. at 1.7/0.5 mm Hg. A small amount of material was slurried in hexane, and after filtering and drying the product melted at 65.degree.-67.degree. C.

The dye compounds of our invention which are especially valuable polyamide dyes because of their cost and performance, including shade, dyeability and fastness properties, on polyamide fibers are those having the formula ##STR6## wherein R is straight or branched alkyl of 1-6 carbons;

R.sup.2 is hydrogen;

R.sup.4 is lower alkylene;

Z is one or two groups selected from hydroxy, carbamoyl, lower alkanoylamino, alkoxy, hydroxyalkoxy, pyrrolidono, and lower alkanoyloxy;

and wherein A has the formulae ##STR7## wherein R.sup.6 is lower alkyl, lower alkoxy, lower alkanoylamino, or lower alkoxycarbonylamino;

R.sup.7 is hydrogen, lower alkyl, or lower alkoxy;

R.sup.8 and R.sup.9 are the same or different and selected from hydrogen; lower alkyl; lower alkyl substituted with hydroxy, alkoxy, alkoxyalkoxy, hydroxyalkoxy, carbamoyl, lower alkylcarbamoyl, lower alkanoylamino, sulfamoyl, lower alkylsulfamoyl, phenyl, cyclohexyl, 2-pyrrolidone, phthalimido, succinimido, cyano, phenoxy, alkylsulfonyl, phthalimidinyl, benzoylsulfonicimidyl, triazolylthio, lower alkylsulfonamido, --SO.sub.2 NH.sub.2, --SO.sub.2 NHR, phenylsulfonamido, lower alkoxycarbonylamino, lower alkylcarbamoyloxy, lower alkoxycarbonyl, lower alkoxycarbonyloxy; ##STR8## R.sup.10 and R.sup.12 are each hydrogen or lower alkyl.

Our novel compounds are synthesized by the novel procedure of diazotizing the thiophene ester, coupling the resulting diazonium salt with a disperse dye coupler and then forming the amide derivative by ester-amide interchange at the 3-position. The novel process is more particularly defined as the process for preparing carbamoyl derivatives comprising reacting a compound of the formula ##STR9## wherein R is selected from straight or branched lower alkyl, phenyl, and phenyl substituted with straight or branched lower alkyl, halogen, or straight or branched lower alkoxy, R.sup.2 is hydrogen or lower alkyl, and A is an aniline, tetrahydroquinoline, or benzomorpholine coupler moiety, with an amine of the formula H.sub.2 N-R.sup.4 Z wherein RHU 4 and Z are as defined above. The above thiophene ester intermediates and their preparation are more fully disclosed in British Pat. No. 1,427,195, particularly page 5, and the references cited thereon. More specifically, an examplary procedure is as follows:

2-Amino-3-carbomethoxy-5-(2-methyl-1-oxopropyl)thiophene is diazotized preferably using nitrosyl sulfuric acid in 60% acetic acid. The amine (0.01 mole) is added to 30 g of 60% acetic acid containing 2 g of concentrated sulfuric acid at 10.degree.-15.degree. C. The slurry is cooled and a solution of sodium nitrite (0.72 g) dissolved in concentrated sulfuric acid (5 ml) is added at 0.degree.-5.degree. C. After stirring for one hour at 0.degree.-5.degree. C., the diazotization is essentially complete and a brownish red solution is obtained. This diazonium solution is added to 1,2,3,4-tetrahydro-1-(2-hydroxyethyl)-2,7-dimethyl quinoline dissolved in 15% sulfuric acid or 1:5 acid (1 part propionic acid:5 parts acetic acid). The coupling is neutralized to Congo Red test paper with solid ammonium acetate. After coupling for 1-2 hours at about 10.degree.-15.degree. C., water is added to precipitate the dye which is collected by filtration, washed with water, and dried in air. The crude dye, in most instances is purified by a hot methanol reslurry. The ester intermediate (0.5 g), 5 ml of 2-hydroxyethylamine, and 10 ml of isopropyl alcohol solvent are heated at reflux until the reaction is completed as evidenced by paper chromatography (0.25-0.5 hr.). The dye is isolated by the addition of water or by drowning into water. After being filtered and washed free of amine residues with water, the dye is dried in air. In general, the dye is pure at this stage and requires no further purification. In many cases the ester intermediate may be heated in the aliphatic amine without additional solvent at its boiling point or about 90.degree.-95.degree. C. until the interchange is complete, and then isolating the product as above. Other useful solvents include N,N-dimethylformamide, methyl Cellosolve, ethylene glycol and acetonitrile, and in general any solvent which will facilitate solution of the ester intermediate with the amine may be used. Lower temperatures down to about 25.degree. C. may be used for the ester-amide interchange, but it is preferred to use from about 50.degree. C. to about 100.degree. C.

The amine diazo precursors are prepared according to procedures well documented in the literature: Z Chem., Volume 2, page 305 (1962); Chem, Ber., Volume 98, page 3571 (1965) and Volume 99, page 2712 (1966); and Chem. Heterocyclic Compounds, Volume 2, page 285 (1966); and Volume 3, page 178 (1967). For example, an aldehyde or ketone having an unsubstituted or substituted .alpha.-methyl group can be condensed with an active cyanomethylene compound and elemental sulfur in the presence of a secondary amine. A second technique involves treating an activated vinyl compound bearing an unsubstituted or substituted .beta.-methylene group with elemental sulfur in the presence of a secondary aliphatic amine. These reactions may be diagrammed as follows: ##STR10## Amines obtained by the above procedures can be modified, for example, by bromination followed by nucleophilic displacement reactions.

The novel azo compounds can be applied to synthetic polyamide, polyester, and cellulose acetate fibers according to known disperse dyeing techniques. Various dispersing and wetting agents can be employed in the dispersion of the finely divided dye compound in an essentially aqueous dyebath. Procedures by which the compounds of the invention can be applied to polyamide textile materials are described in U.S. Pat. Nos. 3,100,134 and 3,320,021. The following example illustrates a method for applying the novel compounds to polyamide fibers.

The azo compound (16.7 mg.) of Example (A) above is dispersed in 10 cc. of 2-methoxyethanol. A small amount (3-5 cc.) of a 3% sodium lignin sulfonate solution is added, with stirring, and then the volume of the bath is brought to 150 cc. with water. A 5 g. textile fabric made of nylon 66 fibers is placed in the bath and worked 10 minutes without heat. The bath is then slowly brought to the boil over a 30-minute period and the dyeing is carried out at the boil for one hour. The dyed fabric is then removed from the dyebath, rinsed with water and dried in an oven at 250.degree. F. The fabric is dyed a bright shade of blue exhibiting excellent fastness properties when tested in accordance with the procedures described in the Technical Manual of the American Association of Textile Chemists and Colorists, 1968 edition.

The synthetic polyamide fibers which can be dyed with the novel azo compounds are well known and have a basis of a linear polyamide such as nylon 66 (polyhexamethylene adipamide) manufactured by the polymerization of adipic acid and hexamethylenediamine, nylon 6 (polycaprolactam) prepared from epsilonaminocaproic acid lactum (caprolactum) and nylon 8. A detailed description of the synthetic polyamide materials which are dyed bright, fast shades by the compounds of the invention is set forth in U.S. Pat. No. 3,100,134.

The azo compounds described in the examples of following Tables I, II and III conform, respectively, to the general formulae ##STR11## No.Ex. ##STR12## R.sup.6, R.sup.7 R.sup.8 R.sup.9 1 ##STR13## 3-CH.sub.3 CH.sub.2 CH(OH)CH.sub.2 OH C.sub.2 H.sub.5 2 " " C.sub.2 H.sub.5 C.sub.2 H.sub.4 OH 3 " " " C.sub.2 H.sub.5 4 " 2-OCH.sub.35-CH.sub.3 " C.sub.2 H.sub.4 OH 5 ##STR14## 3-CH.sub.3 CH.sub.2 CH(OH)CH.sub.2 OH C.sub.2 H.sub.5 6 " " C.sub.2 H.sub.5 C.sub.2 H.sub.4 OH 7 " " " C.sub.2 H.sub.5 8 " 2-OCH.sub.35-CH.sub.3 " C.sub.2 H.sub.4 OH 9 ##STR15## 3-CH.sub.3 CH.sub.2 CH(OH)CH.sub.2 OH C.sub.2 H.sub.5 10 " " C.sub.2 H.sub.5 C.sub.2 H.sub.4 OH 11 ##STR16## " " C.sub.2 H.sub.5 12 " 2-OCH.sub.35-CH.sub.3 " C.sub.2 H.sub.4 OH 13 ##STR17## 3-NHCOCH.sub.3 CH.sub.2 CH.sub.2 NHCOCH.sub.3 C.sub.2 H.sub.5 14 " 3-CH.sub.3 " " 15 " H C.sub.2 H.sub.5 " 16 " " " " 17 " " " CH.sub.2 CH.sub.2 OH 18 " " " CH.sub.2 CH.sub.2 Cl 19 " " " CH.sub.2 CH.sub.2 Br 20 " " " CH.sub.2 CH.sub.2 CN 21 " " " ##STR18## 22 " " CH.sub.2 CH.sub.2 CN C.sub.2 H.sub.5 23 " " CH.sub.2 CH.sub.2 OH CH.sub.2 CH.sub.2 OH 24 " 3-CH.sub.3 CH.sub.2 CH.sub.2 Cl CH.sub.2 CH.sub.2 Cl 25 " " C.sub.2 H.sub.5 CH.sub.2 CH.sub.2 SC.sub.2 H.sub.5 26 " " " CH.sub.2 CH.sub.2 CONH.sub.2 27 " 3-NHCOCH.sub.3 " CH.sub.2 CH.sub.2 CONH.sub.2 28 " " CH.sub.2 CH.sub.2 NHCOCH.sub.3 C.sub.2 H.sub.5 29 " " C.sub.2 H.sub.5 " 30 " 3-NHCOOCH.sub.3 " " 31 " 3-NHCOCH.sub.2 OH H " 32 " 3-NHCOCH.sub.2 OOCCH.sub.3 " " 33 " 3-NHCOCH.sub.2 CN " " 34 " 3-NHCOCH.sub.2 CONH.sub.2 CH.sub.2 C.sub.6 H.sub.5 " 35 " 3-NHCOC.sub.6 H.sub.5 CH.sub.2 CH.sub.2 CH.sub.3 " 36 " 3-NHCOC.sub.6 H.sub.11 " " 37 " 3-NHCOC.sub.2 H.sub.5 " ##STR19## 38 " 2,5-di-Cl (CH.sub.2).sub.3 CH.sub.3 C.sub.2 H.sub.5 39 " 2-CH.sub.35-OCH.sub.3 C.sub.2 H.sub.5 ##STR20## 40 " 2-OCH.sub.35-NHCOCH.sub.3 H C.sub.2 H.sub.5 41 " 2-CH.sub.3 " ##STR21## 42 " 2-Cl C.sub.2 H.sub.5 C.sub.2 H.sub.5 43 " 2-OCH.sub.3 " " 44 " 3-OCH.sub.3 " " 45 " 3-Cl CH.sub.2 C.sub.6 H.sub.5 " 46 " 2,5-di-OCH.sub.3 C.sub.2 H.sub.5 " 47 " " " C.sub.6 H.sub.11 48 " " " C.sub.2 H.sub.5 49 " " CH.sub.2 C.sub.6 H.sub.11 CH.sub.2 CHCH.sub.2 50 " 3-NHCOCH.sub.3 CH.sub.2 C.sub.6 H.sub.5p-CH.sub.3 CH.sub.2 C.sub.6 H.sub.5 51 " " C.sub.6 H.sub.5 CH.sub.2 CH.sub.2 NHCOC.sub.2 H.sub.5 52 " " C.sub.6 H.sub.4p-OCH.sub.3 CH.sub.2 CH.sub.2 SO.sub.2 CHCH.sub.2 53 " " C.sub.6 H.sub.4p-Cl CH.sub.2 CH.sub.2 NHCOCHCH.sub.2 54 " 2-CH.sub.35-NHCOCH.sub.3 C.sub.2 H.sub.5 C.sub.2 H.sub.5 55 " " C.sub.6 H.sub.4p-CN CH.sub.2 CH.sub.2 CH.sub.3 56 " " C.sub.6 H.sub.4p-COOCH.sub.3 CH.sub.2 CH.sub.2 OH 57 " 2-CH.sub.35-NHCOOC.sub.2 H.sub.5 H CH.sub.2 CH.sub.2 Cl 58 " 2-OCH.sub.35-NHCOCH.sub.3 " C.sub.2 H.sub.5 59 " " " CH.sub.2 CH(CH.sub.3).sub.2 60 " " " CH.sub.2 CH.sub.2 CN 61 " 3-NHCOCH.sub.3 C.sub.2 H.sub.5 C.sub.2 H.sub.4 COOC.sub.2 H.sub.5 62 " 3-CH.sub.3 CH.sub.2 CH.sub.2 CN C.sub.2 H.sub.4 COOC.sub.2 H.sub.4 OCH.sub.3 63 " H C H.sub.2 CH.sub.2 OOCCH.sub.3 C.sub.2 H.sub.4 OCOCH.sub.3 64 " 3-CH.sub.3 CH.sub.2 CH.sub.2 OCOCH.sub.2 CN C.sub.2 H.sub.4 OCOCH.sub.2 CN 65 " 3-NHCOCH.sub.3 CH.sub.2 CH.sub.2 OH C.sub.2 H.sub.4 OCOOC.sub.2 H.sub.5 66 " " (CH.sub.2).sub.3 NHCOCH.sub.3 C.sub.2 H.sub.5 67 " 3-CH.sub.3 C.sub.2 H.sub.5 C.sub.2 H.sub.4 NHCOOC.sub.2 H.sub.5 68 " " " ##STR22## 69 " 3-NHCOCH.sub.3 " ##STR23## 70 " H " C.sub.2 H.sub.4 OCOOC.sub.2 H.sub.4 OCH.sub.3 71 " 3-CH.sub.3 " C.sub.2 H.sub.4 CONH.sub.2 72 " 3-NHCOCH.sub.3 " C.sub.2 H.sub.4 CONHC.sub.2 H.sub.4 OH 73 " H " C.sub.2 H.sub.4 CON(C.sub.2 H.sub.4 OH).sub.2 74 " 3-CH.sub.3 " C.sub.2 H.sub.4 CONHC.sub.3 H.sub.6 OCH.sub.3 75 " " " C.sub.2 H.sub.4 SO.sub.2 NH.sub.2 76 " 3-NHCOCH.sub.3 " C.sub.2 H.sub.4 SO.sub.2 NHC.sub.6 H.sub.11 77 " 3-CH.sub.3 " C.sub.2 H.sub.4 SO.sub.2 NHC.sub.6 H.sub.5 78 " " " C.sub.2 H.sub.4 SO.sub.2 NHC.sub.2 H.sub.4 Cl 79 " 2-CH.sub.35-NHCOCH.sub.3 H ##STR24## 80 " 3-NHCOCH.sub.3 C.sub.2 H.sub.5 C.sub.2 H.sub.4 OH 81 " " " C.sub.2 H.sub.5 82 " " " ##STR25## 83 " 2-OCH.sub.35-NHCOCH.sub.3 H " 84 " " C.sub.2 H.sub.4 OH C.sub.2 H.sub.4 OH 85 " " C.sub.2 H.sub.5 C.sub.2 H.sub.5 86 " " C.sub.2 H.sub.4 NHCOCH.sub.3 " 87 " " C.sub.2 H.sub.4 CONH.sub.2 " 88 " " ##STR26## " 89 " " CH.sub.2 CH(OH)CH.sub.2 OH C.sub.3 H.sub.7n 90 " " CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.3 C.sub.2 H.sub.5 91 " " C.sub.2 H.sub.4 OC.sub.2 H.sub.4 OH " 92 " 2-OCH.sub.35-CH.sub.3 C.sub.2 H.sub.5 " 93 " " C.sub.2 H.sub.4 OH C.sub.2 H.sub.4 OH 94 " " C.sub.2 H.sub.5 C.sub.2 H.sub.4 CONH.sub.2 95 " 2,5-di-CH.sub.3 ##STR27## H 96 ##STR28## " C.sub.2 H.sub.4 NHCOCH.sub.3 " 97 " " C.sub.2 H.sub.4 CONH.sub.2 " 98 ##STR29## 3-NHCOCH.sub.3 CH.sub.2 CH.sub.2 NHCOCH.sub.3 C.sub.2 H.sub.5 99 " 3-CH.sub.3 " " 100 " H C.sub.2 H.sub.5 " 101 " " " " 102 " " " CH.sub.2 CH.sub.2 OH 103 " " " CH.sub.2 CH.sub.2 Cl 104 " " " CH.sub.2 CH.sub.2 Br 105 " " " CH.sub.2 CH.sub.2 CN 106 " " " CH.sub.2 CH.sub.2 NH.sub.2 107 " " CH.sub.2 CH.sub.2 CN C.sub.2 H.sub.5 108 " "CH.sub.2 CH.sub.2 OH C H.sub.2 CH.sub.2 OH 109 " 3-CH.sub.3 CH.sub.2 CH.sub. 2 Cl CH.sub.2 CH.sub.2 Cl 110 " " C.sub.2 H.sub.5 CH.sub.2 CH.sub.2 SC.sub.2 H.sub.5 111 " " " CH.sub.2 CH.sub.2 CONH.sub.2 112 " 3-NHCOCH.sub.3 " " 113 " " CH.sub.2 CH.sub.2 NHCOCH.sub.3 C.sub.2 H.sub.5 114 " " C.sub.2 H.sub.5 " 115 " 3-NHCOOCH.sub.3 " " 116 " 3-NHCOCH.sub.2 OH H " 117 " 3-NHCOCH.sub.2 OOCCH.sub.3 " " 118 " 3-NHCOCH.sub.2 CN " " 119 " 3-NHCOCH.sub.2 CONH.sub.2 CH.sub.2 C.sub.6 H.sub.5 " 120 " 3-NHCOC.sub.6 H.sub.5 CH.sub.2 CH.sub.2 CH.sub.3 " 121 " 3-NHCOC.sub.6 H.sub.11 " " 122 " 3-NHCOC.sub.2 H.sub.5 " " 123 " 2,5-di-Cl (CH.sub.2).sub.3 5 CH.sub.3 " 124 " 2-CH.sub.3-OCH.sub.3 C.sub.2 H.sub.5 " 125 " 2-OCH.sub.35-NHCOCH.sub.3 H " 126 " 2-CH.sub.3 " " 127 " 2-Cl C.sub.2 H.sub.5 " 128 " 2-OCH.sub.3 " " 129 " 3-OCH.sub.3 " " 130 " 3-Cl CH.sub.2 C.sub.6 H.sub.5 " 131 " 2,5-di-OCH.sub.3 C.sub.2 H.sub.5 " 132 " " " " 133 " " " " 134 " " CH.sub.2 C.sub.6 H.sub.5 " 135 " 3-NHCOCH.sub.3 " CH.sub.2 C.sub.6 H.sub.5 136 " " " CH.sub.2 CH.sub.2 NHCOC.sub.2 H.sub.5 137 " " " CH.sub.2 CH.sub.2 SO.sub.2 CHCH.sub.2 138 " " " CH.sub.2 CH.sub.2 NHCOCHCH.sub.2 139 " 2-CH.sub.35-NHCOCH.sub.3 C.sub.2 H.sub.5 C.sub.2 H.sub.5 140 " " H CH.sub.2 CH.sub.2 CH.sub.3 141 " " " CH.sub.2 CH.sub.2 OH 142 " 2-CH.sub.35-NHCOOC.sub.2 H.sub.5 " CH.sub.2 CH.sub.2 Cl 143 " 2-OCH.sub.35-NHCOCH.sub.3 " C.sub.2 H.sub.5 144 " " " CH.sub.2 CH(CH.sub.3).sub.2 145 " " " CH.sub.2 CH.sub.2 CN 146 " 3-NHCOCH.sub.3 C.sub.2 H.sub.5 C.sub.2 H.sub.5 147 " 3-CH.sub.3 CH.sub.2 CH.sub.2 CN " 148 " H CH.sub.2 CH.sub.2 OOCCH.sub.3 " 149 " 3-CH.sub.3 " " 150 " 3-NHCOCH.sub.3 CH.sub.2 CH.sub.2 OH " 151 " " (CH.sub.2).sub.3 NHCOCH.sub.3 " 152 " 3-CH.sub.3 CH.sub.2 CH.sub.2 NHCOCH.sub.3 ##STR30## 153 " " CH.sub.2 CH.sub.2 Cl C.sub.2 H.sub.5 154 " 3-NHCOCH.sub.3 CH.sub. 2 CH.sub.2 OH ##STR31## 155 " H CH.sub.2 CH.sub.2 CONH.sub.2 C.sub.2 H.sub.5 156 " 3-CH.sub.3 " ##STR32## 157 " 3-NHCOCH.sub.3 CH.sub.2 CH.sub.2 OH C.sub.2 H.sub.5 158 " H CH.sub.2 CH.sub.2 OOCCH.sub.3 ##STR33## 159 " 3-CH.sub.3 " C.sub.2 H.sub.5 160 " " C.sub.2 H.sub.5 ##STR34## 161 " 3-NHCOCH.sub.3 " C.sub.2 H.sub.5 162 " 3-CH.sub.3 " ##STR35## 163 " " " C.sub.2 H.sub.5 164 " 2-CH.sub.35-NHCOCH.sub.3 H ##STR36## 165 " 3-NHCOCH.sub.3 C.sub.2 H.sub.5 ##STR37## 166 " 3-CH.sub.3 " CH.sub.2 CH.sub.2 CH.sub.2 SO.sub.2 CH.sub.3 167 " 3-NHCOCH.sub.3 " ##STR38## 168 " 2-OCH.sub.35-NHCOCH.sub.3 H ##STR39## 169 " " C.sub.2 H.sub.4 OH C.sub.2 H.sub.4 OH 170 " " C.sub.2 H.sub.5 ##STR40## 171 " " C.sub.2 H.sub.4 NHCOCH.sub.3 " 172 " " C.sub.2 H.sub.4 CONH.sub.2 ##STR41## 173 " " ##STR42## " 174 " " CH.sub.2 CH(OH)CH.sub.2 OH C.sub.3 H.sub.7n 175 " " CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.3 C.sub.2 H.sub.5 176 " " C.sub.2 H.sub.4 OC.sub.2 H.sub.4 OH " 177 " 2-OCH.sub.35-CH.sub.3 C.sub.2 H.sub.5 " 178 " " C.sub.2 H.sub.4 OH C.sub.2 H.sub.4 OH 179 " " C.sub.2 H.sub.5 C.sub.2 H.sub.4 CONH.sub.2 180 " 2,5-di-CH.sub.3 ##STR43## H 181 " " C.sub.2 H.sub.4 NHCOCH.sub.3 " 182 " " C.sub.2 H.sub.4 CONH.sub.2 " 183 ##STR44## 3-NHCOCH.sub.3 CH.sub.2 CH.sub.2 NHCOCH.sub.3 C.sub.2 H.sub.5 184 " 3-CH.sub.3 " " 185 " 3-Br C.sub.2 H.sub.5 " 186 " 3-F " " 187 " H C.sub.2 H.sub.4 OC.sub.2 H.sub.4 " 188 " " C.sub.2 H.sub.4 SO.sub.2 C.sub.2 H.sub.4 " 189 " " C.sub.2 H.sub.4 SC.sub.2 H.sub.4 " 190 " " CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 " 191 " " C.sub.2 H.sub.5 CH.sub.2 CH.sub.2 NH.sub.2 192 " " CH.sub.2 CH.sub.2 CN C.sub.2 H.sub.5 193 " " CH.sub.2 CH.sub.2 OH CH.sub.2 CH.sub.2 OH 194 " 3-CH.sub.3 CH.sub.2 CH.sub.2 Cl CH.sub.2 CH.sub.2 Cl 195 " " C.sub.2 H.sub.5 CH.sub.2 CH.sub.2 SC.sub.2 H.sub.5 196 " " " CH.sub.2 CH.sub.2 CONH.sub.2 197 " 3-NHCOCH.sub.3 " " 198 " " CH.sub.2 CH.sub.2 NHCOCH.sub.3 C.sub.2 H.sub.4SO.sub.2 CH.sub.3 199 " " C.sub.2 H.sub.5 C.sub.2 H.sub.4SO.sub.2CH.sub.2 CH.sub.2 Cl 200 " 3-NHCOOCH.sub.3 " C.sub.2 H.sub.4SO.sub.2CH.sub.2 CH.sub.2 OH 201 " 3-NHCOCH.sub.2 OH H C.sub.2 H.sub.4SO.sub.2CH.sub.2 CH.sub.2 CN 202 " 3-NHCOCH.sub.2 OOCCH.sub.3 " ##STR45## 203 " 3-NHCOCH.sub.2 CN " C.sub.2 H.sub.4SO.sub.2CH.sub.2SO.sub.2 CH.sub.3 204 " 3-NHCOCH.sub.2 CONH.sub.2 CH.sub.2 C.sub.6 H.sub.5 C.sub.2 H.sub.4SO.sub.2CH.sub.2SCH.sub.3 205 " 3-NHCOC.sub.6 H.sub.5 CH.sub.2 CH.sub.2 CH.sub.3 C.sub.2 H.sub.4SO.sub.2CH.sub.2 OOCCH.sub.3 206 " 3-NHCOC.sub.6 H.sub.11 " C.sub.2 H.sub.4SO.sub.2CH.sub.2 OCH.sub.3 207 " 3-NHCOC.sub.2 H.sub.5 " C.sub.2 H.sub.4SO.sub.2CH.sub.2 NH.sub.2 208 " 2,5-di-Cl (CH.sub.2).sub.3 CH.sub.3 C.sub.2 H.sub.4SO.sub.2CH.sub.2 NHCH.sub.3 209 " 2-CH.sub.35-OCH.sub.3 C.sub.2 H.sub.5 C.sub.2 H.sub.4SO.sub.2CH.sub.2 CONHCH.sub.3 210 " 2-OCH.sub.35-NHCOCH.sub.3 H C.sub.2 H.sub.4SO.sub.2CH.sub.2 N(CH.sub.3).sub.2 211 " 2-CH.sub.3 " C.sub.2 H.sub.4SO.sub.2CH.sub.2 NHPh 212 " 2-Cl C.sub. 2 H.sub.5 C.sub.2 H.sub.4SO.sub.2CH.sub.2 Ph 213 " 2-OCH.sub.3 " ##STR46## 214 " 3-OCH.sub.3 " C.sub.2 H.sub.5 215 " 3-Cl CH.sub.2 C.sub.6 H.sub.5 " 216 " 2,5-di-OCH.sub.3 C.sub.2 H.sub.5 " 217 " " " " 218 " " " " 219 " " CH.sub.2 C.sub.6 H.sub.5 " 220 " 3-NHCOCH.sub.3 " CH.sub.2 C.sub.6 H.sub.5 221 " " " CH.sub.2 CH.sub.2 NHCOC.sub.2 H.sub.5 222 " " " CH.sub.2 CH.sub.2 SO.sub.2 CHCH.sub.2 223 " " " CH.sub.2 CH.sub.2 NHCOCHCH.sub.2 224 " 2-CH.sub.35-NHCOCH.sub.3 C.sub.2 H.sub.4 OC.sub.2 H.sub.4 CN C.sub.2 H.sub. 5 225 " " C.sub.2 H.sub.4 OC.sub.2 H.sub.4 OCOCH.sub.3 CH.sub.2 CH.sub.2 CH.sub.3 226 " " C.sub.2 H.sub.4 OCH.sub.2 OCH.sub.3 CH.sub.2 CH.sub.2 OH 227 " 2-CH.sub.35-NHCOOC.sub.2 H.sub.5 C.sub.2 H.sub.4 SO.sub.2 NH.sub.2 CH.sub.2 CH.sub.2 Cl 228 " 2-OCH.sub.35-NHCOCH.sub.3 C.sub.2 H.sub.4 SO.sub.2 NHCH.sub.3 C.sub.2 H.sub.5 229 " " C.sub.2 H.sub.4 NHSO.sub.2 CH.sub.3 CH.sub.2 CH(CH.sub.3).sub.2 230 " " C.sub.2 H.sub.4 NHSO.sub.2 Ph CH.sub.2 CH.sub.2 CN 231 " 3-NHCOCH.sub.3 C.sub.2 H.sub.4 NHCOOCH.sub.3 C.sub.2 H.sub.5 232 " 3-CH.sub.3 CH.sub.2 CH.sub.2 CN " 233 " H CH.sub.2 CH.sub.2 OCOCH.sub.3 " 234 " 3-CH.sub.3 CH.sub.2 CH.sub.2 OOCCH.sub.3 " 235 " 3-NHCOCH.sub.3 CH.sub.2 CH.sub.2 OCOOCH.sub.3 " 236 " " (CH.sub.2).sub.3 NHCOCH.sub.3 " 237 " 3-CH.sub.3 C H.sub.2 CH.sub.2 NHCOCH.sub.3 " 238 " " CH.sub.2 CH.sub.2 Cl " 239 " 3-NHCOCH.sub.3 CH.sub.2 CH.sub.2 OCONHCH.sub.3 " 240 " H CH.sub.2 CH.sub.2 CONH.sub.2 " 241 " 3-CH.sub.3 " " 242 " 3-NHCOCH.sub.3 CH.sub.2 CH.sub.2 OH " 243 " H CH.sub.2 CH.sub.2 OOCCH.sub.3 " 244 " ##STR47## " C.sub.2 H.sub.4 Php-NHCOCH.sub.3 245 " 3-CH.sub.3 C.sub.2 H.sub.5 C.sub.2 H.sub.4 Php-OCH.sub.3 246 " 3-NHCOCH.sub.3 " C.sub.2 H.sub.4 Php-Cl 247 " 3-CH.sub.3 " CH.sub.2 Php-CN 248 " 3-CH.sub.2 Cl " CH.sub.2 Php-COOCH.sub.3 249 " 2-CH.sub.35-NHCOCH.sub.3 H ##STR48## 250 " 3-NHCOCH.sub.3 OC.sub.2 H.sub.5 C.sub.2 H.sub.5 C.sub.2 H.sub.4 OH 251 " 3-NHCOCH.sub.2 SO.sub.2 CH.sub.3 " C.sub.2 H.sub.5 252 " 3-NHCOCH.sub.2 SCH.sub.3 " ##STR49## 253 " 2-OCH.sub.35-NHCOCH.sub.3 H " 254 " 3-NHCONH.sub.2 C.sub.2 H.sub.4 OH C.sub.2 H.sub.4 OH 255 " 3-NHCONHCH.sub.3 C.sub.2 H.sub.5 C.sub.2 H.sub.5 256 " 3-NHCON(CH.sub.3).sub.2 C.sub.2 H.sub.4 NHCOCH.sub.3 " 257 " ##STR50## C.sub.2 H.sub.4 CONH.sub.2 " 258 " ##STR51## ##STR52## " 259 " ##STR53## CH.sub.2 CH(OH)CH.sub.2 OH C.sub.3 H.sub.7n 260 " 2-OCH.sub.35-NHCOCH.sub.3 CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.3 C.sub.2 H.sub.5 261 " " C.sub.2 H.sub.4 OC.sub.2 H.sub.4 OH " 262 " 2-OCH.sub.35-CH.sub.3 C.sub.2 H.sub.5 " 263 " " C.sub.2 H.sub.4 OH C.sub.2 H.sub.4 OH 264 " " C.sub.2 H.sub.5 C.sub.2 H.sub.4 CONH.sub.2 265 " 2,5-di-CH.sub.3 ##STR54## H 266 " " C.sub.2 H.sub.4 NHCOCH.sub.3 " 267 " " C.sub.2 H.sub.4 CONH.sub.2 " 268 ##STR55## 3-CH.sub.3 C.sub.2 H.sub. 5 C.sub.2 H.sub.5 269 ##STR56## 3-NHCOOCH.sub.2 Cl " " 270 ##STR57## 3-NHCOOCH.sub.2 OH " " 271 ##STR58## ##STR59## " " 272 ##STR60## 3-NHCOOCH.sub.2 CN " " 273 ##STR61## ##STR62## " " 274 ##STR63## 3-NHCOOCH.sub.2 SO.sub.2 CH.sub.3 " " 275 ##STR64## 3-NHCOOCH.sub.2 SCH.sub.3 C.sub.2 H.sub.4SC.sub.2 H.sub.4 OH " 276 ##STR65## 3-NHCOOCH.sub.2 OCOCH.sub.3 C.sub.2 H.sub.4SPh " 277 ##STR66## 3-NHCOOCH.sub.2 OCH.sub.3 C.sub.2 H.sub.4SPhp-Cl " 278 ##STR67## 3-NHSO.sub.2 CH.sub.3 C.sub.2 H.sub.4SPhp-CH.sub.3 " 279 ##STR68## 3-NHSO.sub.2 CH.sub.2 Cl C.sub.2 H.sub.4SPhp-OCH.sub.3 " 280 ##STR69## 3-NHSO.sub.2 CH.sub.2 OH C.sub.2 H.sub.4SPhp-NHCOCH.sub.3 " 281 ##STR70## ##STR71## C.sub.2 H.sub.4SPhp-CN " 282 ##STR72## 3-NHSO.sub.2 CH.sub.2 CN C.sub.2 H.sub.4SPhp-COOCH.sub.3 " 283 ##STR73## ##STR74## C.sub.2 H.sub.5 ##STR75## 284 ##STR76## 3-NHSO.sub.2 CH.sub.2 SO.sub.2 CH.sub.3 " " 285 ##STR77## 3-NHSO.sub.2 CH.sub.2 SCH.sub.3 " " 286 ##STR78## 3-NHSO.sub.2 CH.sub.2 OCOCH.sub.3 " " 287 ##STR79## 3-NHSO.sub.2 CH.sub.3 " " 288 ##STR80## 3-CH.sub.3 " " 289 ##STR81## " " " 290 ##STR82## " " " 291 ##STR83## " " " 292 ##STR84## " " " 293 ##STR85## " C.sub.2 H.sub.4 CONH.sub.2 C.sub.2 H.sub.5 294 ##STR86## " " " 295 ##STR87## " " " 296 ##STR88## " " " 297 ##STR89## " " " 298 ##STR90## " " " 299 ##STR91## " " " 300 ##STR92## " " " 301 ##STR93## " " " 302 ##STR94## " " " 303 ##STR95## " " " 304 ##STR96## " C.sub.2 H.sub.5 C.sub.2 H.sub.4 CN 305 ##STR97## " " " 306 ##STR98## " " " 307 ##STR99## " " " 308 ##STR100## " " " 309 ##STR101## " " " 310 ##STR102## " " " 311 ##STR103## " " " 312 ##STR104## " " C.sub.2 H.sub.5 OCH.sub.3 313 ##STR105## " " " 314 ##STR106## "" " 315 ##STR107## " " " 316 ##STR108## " " " 317 ##STR109## " " " 318 ##STR110## " CH.sub.2 CH(OH)CH.sub.2 OH C.sub.2 H.sub.5 319 ##STR111## ##STR112## " " 320 ##STR113## ##STR114## " " 321 ##STR115## 3-SC.sub.2 H.sub.5 "" 322 ##STR116## ##STR117## " " 323 ##STR118## 3-CH.sub.3 " " 324 ##STR119## " C.sub.6 H.sub.4p-Cl " 325 ##STR120## " C.sub.6 H.sub.5 C.sub.2 H.sub.4 OH 326 ##STR121## " " C.sub.2 H.sub.4 CONH.sub.2 327 ##STR122## " " C.sub.3 H.sub.6 CONH.sub.2 328 ##STR123## " C.sub.2 H.sub.5 ##STR124## 329 ##STR125## " " ##STR126## 330 ##STR127## " " ##STR128## 331 ##STR129## " " C.sub.6 H.sub.4p-OCH.sub.3 332 ##STR130## " " ##STR131## 333 ##STR132## " ##STR133## ##STR134## 334 ##STR135## " " ##STR136## 335 ##STR137## " C.sub.2 H.sub.5 ##STR138## 336 ##STR139## " " ##STR140## 337 ##STR141## " " ##STR142## 338 ##STR143## " " ##STR144## 339 ##STR145## " " ##STR146## 340 ##STR147## " " ##STR148## 341 ##STR149## " " ##STR150## 342 ##STR151## " " ##STR152##

The invention has been described in detail with particular reference to preferred embodiments thereof, but it will be understood tht variations and modifications can be effected within the spirit and scope of the invention.