Dialkyl Phenyl Halide-Substituted Keto-Enols for Use as Herbicides and Pesticides

1. A compound of the formula (I) ##STR271## in which X represents alkyl, Y represents halogen or alkyl and Z represents halogen or allkyl, with the proviso that one of the radicals Y and Z always represents halogen and the other alkyl, Het represents one of the groups ##STR272## in which A represents hydrogen, or alkyl, alkenyl, alkoxyalkyl, polyalkoxyalkyl or alkylthioalkyl, each of which is optionally substituted by halogen, or cycloalkyl or heterocyclyl, each of which is saturated or unsaturated and optionally substituted, or aryl, arylalkyl or hetaryl, each of which is optionally substituted by halogen, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, cyano or nitro, B represents hydrogen, alkyl or alkoxyalkyl, or A and B, together with the carbon atom to which they are bonded, represent a saturated or unsaturated, optionally substituted carbocycle or heterocycle, D represents hydrogen or an optionally substituted radical of the series alkyl, alkenyl, alkinyl, alkoxyalkyl, polyalkoxyalkyl, alkylthioalkyl, saturated or unsaturated cycloalkyl, saturated or unsaturated heterocyclyl, arylalkyl, aryl, hetarylalkyl or hetaryl, or A and D, together with the atoms to which they are bonded, represent a saturated or unsaturated substituted when Het is (1), and optionally substituted when Het is (4), carbocycle or heterocycle, G, in the case in which Het represents the radical (1), represents hydrogen (a) or, in the case in which Het represents one of the radicals (1) or (4), represents one of the groups ##STR273## in which E represents a metal ion equivalent or an ammonium ion, L represents oxygen or sulphur, M represents oxygen or sulphur, R.sup.1 represents alkyl, alkenyl, alkoxyalkyl, alkylthioalkyl or polyalkoxyalkyl, each of which is optionally substituted by halogen, or cycloalkyl or heterocyclyl, each of which is optionally substituted by halogen, alkyl or alkoxy, or phenyl, phenylalkyl, hetaryl, phenoxyalkyl or hetaryloxyalkyl, each of which is optionally substituted, R.sup.2 represents alkyl alkenyl, alkoxyalkyl or polyalkoxyalkyl, each of which is optionally substituted by halogen, or cycloalkyl, phenyl or benzyl, each of which is optionally substituted, R.sup.3, R.sup.4 and R.sup.5 independently of one another represent alkyl, alkoxy, alkylamino, dialkylamino, alkylthio, alkenylthio or cycloalkylthio, each of which is optionally substituted by halogen, or phenyl, phenoxy or phenylthio, each of which is optionally substituted, R.sup.6 and R.sup.7 independently of one another represent hydrogen, or alkyl cycloalkyl, alkenyl, alkoxy, alkoxyalkyl, each of which is optionally substituted by halogen, or phenyl or benzyl, each of which is optionally substituted, or, together with the N atom to which they are bonded, form an optionally substituted cyclic system optionally containing oxygen or sulphur.

2. A compound of the formula (I) according to claim 1, in which X represents C.sub.1 -C.sub.6 -allkyl, Y represents halogen or C.sub.1 -C.sub.6 -allkyl, Z represents halogen or C.sub.1 -C.sub.6 -allkyl, in this case, one of the substituents Y and Z always represents halogen and the other alkyl, Het represents one of the groups ##STR274## A represents hydrogen, or C.sub.1 -C.sub.12 -alkyl, C.sub.2 -C.sub.8 -alkenyl, C.sub.1 -C.sub.10 -alkoxy-C.sub.1 -C.sub.8 -alkyl, poly-C.sub.1 -C.sub.8 -alkoxy-C.sub.1 -C.sub.8 -alkyl or C.sub.1 -C.sub.10 -alkylthio-C.sub.1 -C.sub.6 -alkyl, each of which is optionally substituted by halogen, or C.sub.3 -C.sub.8 -cycloalkyl which is optionally substituted by halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy and in which one or two methylene groups are optionally replaced by oxygen and/or sulphur, or phenyl, naphthyl, phenyl-C.sub.1 -C.sub.6 -alkyl, naphthyl-C.sub.1 -C.sub.6 -alkyl or hetaryl having 5 or 6 ring atoms and one to three heteroatoms from the series oxygen, sulphur and nitrogen, each of which is optionally substituted by halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -halogenoalkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -halogenoalkoxy, cyano or nitro B represents hydrogen, C.sub.1 -C.sub.12 -alkyl or C.sub.1 -C.sub.8 -alkoxy-C.sub.1 -C.sub.6 -alkyl, or A, B and the carbon atom to which they are bonded represent C.sub.3 -C.sub.10 -cycloalkyl or C.sub.5 -C.sub.10 -cycloalkenyl, in which one methylene group is optionally replaced by oxygen or sulphur and each of which is optionally substituted by C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.10 -cycloalkyl, C.sub.1 -C.sub.8 -halogenoalkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.8 -alkylthio, halogen or phenyl or A, B and the carbon atom to which they are bonded represent C.sub.5 -C.sub.6 -cycloalkyl which is substituted by an alkylenediyl group optionally containing one or two oxygen and/or sulphur atoms, or by an alkylenedioxyl group or by an alkylenedithioyl group which, with the carbon atom to which it is bonded, forms a further five- to eight-membered ring, or A, B and the carbon atom to which they are bonded represent C.sub.3 -C.sub.8 -cycloalkyl or C.sub.5 -C.sub.8 -cycloalkenyl, in which two substituents, together with the carbon atoms to which they are bonded, represent C.sub.3 -C.sub.6 -alkanediyl, C.sub.3 -C.sub.6 -alkenediyl or C.sub.4 -C.sub.6 -alkanedienediyl, each of which is optionally substituted by C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy or halogen and in which one methylene group is optionally replaced by oxygen or sulphur in each case, D represents hydrogen, or C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.8 -alkenyl, C.sub.3 -C.sub.8 -alkinyl, C.sub.1 -C.sub.10 -alkoxy-C.sub.2 -C.sub.8 -alkyl, poly-C.sub.1 -C.sub.8 -alkoxy-C.sub.2 -C.sub.8 -alkyl or C.sub.1 -C.sub.10 -alkylthio-C.sub.2 -C.sub.8 -alkyl, each of which is optionally substituted by halogen, or C.sub.3 -C.sub.8 -cycloalkyl which is optionally substituted by halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -halogenoalkyl and in which one or two non-directly adjacent methylene groups are optionally replaced by oxygen and/or sulphur, or phenyl, hetaryl having 5 to 6 ring atoms and one or two heteroatoms from the series oxygen, sulphur and nitrogen, phenyl-C.sub.1 -C.sub.6 -alkyl or hetaryl-C.sub.1 -C.sub.6 -alkyl having 5 to 6 ring atoms and one or two heteroatoms from the series oxygen, sulphur and nitrogen, each of which is optionally substituted by halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -halogenoalkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -halogenoalkoxy, cyano or nitro, or A and D together represent a C.sub.3 -C.sub.6 -alkanediyl, C.sub.3 -C.sub.6 -alkenediyl or C.sub.4 -C.sub.6 -alkadienediyl group in which one methylene group in each case is optionally replaced by oxygen or sulphur and each of which is substituted when Het is (1), and optionally substituted when Het is (4), by halogen, hydroxyl, mercapto or C.sub.1 -C.sub.10 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkylthio, C.sub.3 -C.sub.7 -cycloalkyl, phenyl or benzyloxy, each of which is substituted when Het is (1), and optionally substituted when Het is (4), by halogen, or by a further C.sub.3 -C.sub.6 -alkanediyl, C.sub.3 -C.sub.6 -alkenediyl or C.sub.4 -C.sub.6 -alkadienediyl group forming a fused ring and in which one methylene group in each case is optionally replaced by oxygen or sulphur and which is substituted when Het is (1), and optionally substituted when Het is (4), by C.sub.1 -C.sub.6 -alkyl or in which two adjacent substituents, together with the carbon atoms to which they are bonded, optionally form a further saturated or unsaturated carbocycle having 5 or 6 ring atoms, or A and D together represent a C.sub.3 -C.sub.6 -alkanediyl or C.sub.3 -C.sub.6 -alkenediyl group which in each case optionally contains one of the following groups ##STR275## G represents, in the case in which Het represents the radical (1), hydrogen (a) or, in the case in which Het represents one of the radicals (1) or (4), one of the groups ##STR276## in which E represents a metal ion equivalent or an ammonium ion, L represents oxygen or sulphur and M represents oxygen or sulphur, R.sup.1 represents C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, C.sub.1 -C.sub.8 -alkoxy-C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkylthio-C.sub.1 -C.sub.8 -alkyl or poly-C.sub.1 -C.sub.8 -alkoxy-C.sub.1 -C.sub.8 -alkyl, each of which is optionally substituted by halogen, or C.sub.3 -C.sub.8 -cycloalkyl which is optionally substituted by halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy and in which one or two methylene groups are optionally replaced by oxygen and/or sulphur, phenyl which is optionally substituted by halogen, cyano, nitro, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -halogenoalkyl, C.sub.1 -C.sub.6 -halogenoalkoxy, C.sub.1 -C.sub.6 -alkylthio or C.sub.1 -C.sub.6 -alkylsulphonyl, phenyl-C.sub.1 -C.sub.6 -alkyl which is optionally substituted by halogen, nitro, cyano, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -halogenoalkyl or C.sub.1 -C.sub.6 -halogenoalkoxy, 5- or 6-membered hetaryl having one or two heteroatoms from the series oxygen, sulphur and nitrogen and which is optionally substituted by halogen or C.sub.1 -C.sub.6 -alkyl, phenoxy-C.sub.1 -C.sub.6 -alkyl which is optionally substituted by halogen or C.sub.1 -C.sub.6 -alkyl, or 5- or 6-membered hetaryloxy-C.sub.1 -C.sub.6 -alkyl having one or two heteroatoms from the series oxygen, sulphur and nitrogen and which is optionally substituted by halogen, amino or C.sub.1 -C.sub.6 -alkyl, R.sup.2 represents C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, C.sub.1 -C.sub.8 -alkoxy-C.sub.2 -C.sub.8 -alkyl or poly-C.sub.1 -C.sub.8 -alkoxy-C.sub.2 -C.sub.8 -alkyl, each of which is optionally substituted by halogen, C.sub.3 -C.sub.8 -cycloalkyl which is optionally substituted by halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy, or phenyl or benzyl, each of which is optionally substituted by halogen, cyano, nitro, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -halogenoalkyl or C.sub.1 -C.sub.6 -halogenoalkoxy, R.sup.3 represents C.sub.1 -C.sub.8 -alkyl which is optionally substituted by halogen, or phenyl or benzyl, each of which is optionally substituted by halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.4 -halogenoalkoxy, cyano or nitro, R.sup.4 and R.sup.5 independently of one another represent C.sub.1 -C.sub.8 -alkyl , C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.8 -alkylamino, di-(C.sub.1 -C.sub.8 -alkyl)amino, C.sub.1 -C.sub.8 -alkylthio or C.sub.2 -C.sub.8 -alkenylthio, each of which is optionally substituted by halogen, or phenyl, phenoxy or phenylthio, each of which is optionally substituted by halogen, nitro, cyano, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -halogenoalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -halogenoalkylthio, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -halogenoalkyl, R.sup.6 and R.sup.7 independently of one another represent hydrogen, or C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.3 -C.sub.8 -alkenyl or C.sub.1 -C.sub.8 -alkoxy-C.sub.2 -C.sub.8 -alkyl, each of which is optionally substituted by halogen, or phenyl or benzyl, each of which is optionally substituted by halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -halogenoalkyl or C.sub.1 -C.sub.8 -alkoxy or together represent a C.sub.3 -C.sub.6 -alkylene radical which is optionally substituted by C.sub.1 -C.sub.6 -alkyl and in which a methylene group is optionally replaced by oxygen or sulphur, R.sup.13 represents hydrogen or C.sub.1 -C.sub.8 -alkyl or C.sub.1 -C.sub.8 -alkoxy, each of which is optionally substituted by halogen, or C.sub.3 -C.sub.8 -cycloalkyl which is optionally substituted by halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy and in which a methylene group is optionally replaced by oxygen or sulphur, or phenyl, phenyl-C.sub.1 -C.sub.4 -alkyl or phenyl-C.sub.1 -C.sub.4 -alkoxy, each of which is optionally substituted by halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.4 -halogenoalkoxy, nitro or cyano, R.sup.14 represents hydrogen or C.sub.1 -C.sub.8 -alkyl, or R.sup.13 and R.sup.14 together represent C.sub.4 -C.sub.6 -alkanediyl, R.sup.15 and R.sup.16 are identical or different and represent C.sub.1 -C.sub.6 -alkyl, or R.sup.15 and R.sup.16 together represent a C.sub.2 -C.sub.4 -alkanediyl radical which is optionally substituted by C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -halogenoalkyl or by phenyl which is optionally substituted by halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.4 -halogenoalkoxy, nitro or cyano, R.sup.17 and R.sup.l8 independently of one another represent hydrogen, or C.sub.1 -C.sub.8 -alkyl which is optionally substituted by halogen or phenyl which is optionally substituted by halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.4 -halogenoalkoxy, nitro or cyano, or R.sup.17 and R.sup.18, together with the carbon atom to which they are bonded, represent a carbonyl group, or C.sub.5 -C.sub.7 -cycloalkyl which is optionally substituted by C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy and in which a methylene group is optionally replaced by oxygen or sulphur, R.sup.19 and R.sup.20 independently of one another represent C.sub.1 -C.sub.10 -alkyl, C.sub.2 -C.sub.10 -alkenyl, C.sub.1 -C.sub.10 -alkoxy, C.sub.1 -C.sub.10 -alkylamino, C.sub.3 -C.sub.10 -alkenylamino, di-(C.sub.1 -C.sub.10 -alkyl)-amino or di-(C.sub.3 -C.sub.10 -alkenyl)amino.

3. A compound of the formula (I) according to claim 1, in which X represents C.sub.1 -C.sub.4 -alkyl, Y represents fluorine, chlorine, bromine or C.sub.1 -C.sub.4 -alkyl, Z represents fluorine, chlorine, bromine or C.sub.1 -C.sub.4 -alkyl, in this case one of the radicals Y and Z always represents halogen and the other alkyl, Het represents one of the groups ##STR277## A represents hydrogen, or C.sub.1 -C.sub.10 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.1 -C.sub.8 -alkoxy-C.sub.1 -C.sub.6 -alkyl, poly-C.sub.1 -C.sub.6 -alkoxy-C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.8 -alkylthio-C.sub.1 -C.sub.6 -alkyl, each of which is optionally substituted by fluorine or chlorine, or C.sub.3 -C.sub.7 -cycloalkyl which is optionally substituted by fluorine, chlorine, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy and in which one or two methylene groups are optionally replaced by oxygen and/or sulphur, or phenyl, furanyl, pyridyl, imidazolyl, triazolyl, pyrazolyl, indolyl, thiazolyl, thienyl or phenyl-C.sub.1 -C.sub.4 -alkyl, each of which is optionally substituted by fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -halogenoalkoxy, cyano or nitro, B represents hydrogen, C.sub.1 -C.sub.10 -alkyl or C.sub.1 -C.sub.6 -alkoxy-C.sub.1 -C.sub.4 -alkyl or A, B and the carbon atom to which they are bonded represent C.sub.3 -C.sub.8 -cycloalkyl or C.sub.5 -C.sub.8 -cycloalkenyl, in which in each case a methylene group is optionally replaced by oxygen or sulphur and each of which is optionally substituted by C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.1 -C.sub.3 -halogenoalkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkylthio, fluorine, chlorine or phenyl, or A, B and the carbon atom to which they are bonded represent C.sub.5 -C.sub.6 -cycloalkyl which is substituted by an alkylenediyl group optionally containing one or two oxygen or sulphur atoms or by an alkylenedioxyl group or by an alkylenedithioyl group and which, with the carbon atom to which it is bonded, forms a further 5- to 7-membered ring, or A, B and the carbon atom to which they are bonded represent C.sub.3 -C.sub.6 -cycloalkyl or C.sub.5 -C.sub.6 -cycloalkenyl, in which two substituents, together with the carbon atoms to which they are bonded, represent C.sub.3 -C.sub.5 -alkanediyl, C.sub.3 -C.sub.5 -alkenediyl or butadienediyl, each of which is optionally substituted by C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -alkoxy, fluorine, chlorine or bromine, and in which in each case a methylene group is optionally replaced by oxygen or sulphur, D represents hydrogen, or C.sub.1 -C.sub.10 -alkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkinyl, C.sub.1 -C.sub.8 -alkoxy-C.sub.2 -C.sub.6 -alkyl, poly-C.sub.1 -C.sub.6 -alkoxy-C.sub.2 -C.sub.6 -alkyl or C.sub.1 -C.sub.8 -alkylthio-C.sub.2 -C.sub.6 -alkyl, each of which is optionally substituted by fluorine or chlorine, or C.sub.3 -C.sub.7 -cycloalkyl which is optionally substituted by fluorine, chlorine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.2 -halogenoalkyl and in which one or two non-directly adjacent methylene groups are optionally replaced by oxygen and/or sulphur, or phenyl, furanyl, imidazolyl, pyridyl, thiazolyl, pyrazolyl, pyrimidyl, pyrrolyl, thienyl, triazolyl or phenyl-C.sub.1 -C.sub.4 -alkyl, each of which is optionally substituted by fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -halogenoalkoxy, cyano or nitro, or A and D together represent C.sub.3 -C.sub.5 -alkanediyl or C.sub.3 -C.sub.5 -alakenediyl group in which in each case a carbon atom is optionally replaced by oxygen or sulphur and each of which is substituted when Het is (1), and optionally substituted when Het is (4), by fluorine, chlorine, hydroxyl, mercapto or by C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.3 -C.sub.6 -cycloalkyl, phenyl, or benzoyloxy, each of which is substituted when Het is (1), and optionally substituted when Het is (4), by fluorine or chlorine, or which in each case optionally contains one of the following groups: ##STR278## or A and D represent (in the case of the compounds of the formula (I-1)), together with the atoms to which they are bonded, one of the groups AD-1 to AD-27 ##STR279## G represents, in the case in which Het represents the radical (1), hydrogen (a) or, in the case in which Het represents one of the radicals (1) or (4), one of the groups ##STR280## in which E represents a metal ion equivalent or an ammonium ion, L represents oxygen or sulphur and M represents oxygen or sulphur, R.sup.1 represents C.sub.1 -C.sub.16 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.1 -C.sub.6 -alkoxy-C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkylthio-C.sub.1 -C.sub.6 -alkyl or poly-C.sub.1 -C.sub.6 -alkoxy-C.sub.1 -C.sub.6 -alkyl, each of which is optionally substituted by fluorine or chlorine, or C.sub.3 -C.sub.7 -cycloallyl which is optionally substituted by fluorine, chlorine, C.sub.1 -C.sub.5 -alkyl or C.sub.1 -C.sub.5 -alkoxy and in which one or two methylene groups are optionally replaced by oxygen and/or sulphur, phenyl which is optionally substituted by fluorine, chlorine, bromine, cyano, nitro, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.3 -halogenoalkyl, C.sub.1 -C.sub.3 -halogenoalkoxy, C.sub.1 -C.sub.4 -alkylthio or C.sub.1 -C.sub.4 -alkylsulphonyl, phenyl-C.sub.1 -C.sub.4 -alkyl which is optionally substituted by fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.3 -halogenoalkyl or C.sub.1 -C.sub.3 -halogenoalkoxy, pyrazolyl, thiazolyl, pyridyl, pyrimidyl, furanyl or thienyl, each of which is optionally substituted by fluorine, chlorine, bromine or C.sub.1 -C.sub.4 -alkyl, phenoxy-C.sub.1 -C.sub.5 -alkyl which is optionally substituted by fluorine, chlorine, bromine or C.sub.1 -C.sub.4 -alkyl, or pyridyloxy-C.sub.1 -C.sub.5 -alkyl, pyrimidyloxy-C.sub.1 -C.sub.5 -alkyl or thiazolyloxy-C.sub.1 -C.sub.5 -alkyl, each of which is optionally substituted by fluorine, chlorine, bromine, amino or C.sub.1 -C.sub.4 -alkyl, R.sup.2 represents C.sub.1 -C.sub.16 -alkyl, C.sub.2 -C.sub.16 -alkenyl, C.sub.1 -C.sub.6 -alkoxy-C.sub.2 -C.sub.6 -alkyl or poly-C.sub.1 -C.sub.6 -alkoxy-C.sub.2 -C.sub.6 -alkyl, each of which is optionally substituted by fluorine or chlorine, C.sub.3 -C.sub.7 -cycloalkyl which is optionally substituted by fluorine, chlorine, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, or phenyl or benzyl, each of which is optionally substituted by fluorine, chlorine, bromine, cyano, nitro, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.3 -alkoxy, C.sub.1 -C.sub.3 -halogenoalkyl or C.sub.1 -C.sub.3 -halogenoalkoxy, R.sup.3 represents C.sub.1 -C.sub.6 -alkyl which is optionally substituted by fluorine or chlorine, or phenyl or benzyl, each of which is optionally substituted by fluorine, chlorine, bromine, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -alkoxy, C.sub.1 -C.sub.3 -halogenoalkyl, C.sub.1 -C.sub.3 -halogenoalkoxy, cyano or nitro, R.sup.4 and R.sup.5 independently of one another represent C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkylamino, di-(C.sub.1 -C.sub.6 -alkyl)amino, C.sub.1 -C.sub.6 -alkylthio or C.sub.3 -C.sub.4 -alkenylthio, each of which is optionally substituted by fluorine or chlorine, or phenyl, phenoxy or phenylthio, each of which is optionally substituted by fluorine, chlorine, bromine, nitro, cyano, C.sub.1 -C.sub.3 -alkoxy, C.sub.1 -C.sub.3 -halogenoalkoxy, C.sub.1 -C.sub.3 -alkylthio, C.sub.1 -C.sub.3 -halogenoalkylthio, C.sub.1 -C.sub.3 -alkyl or C.sub.1 -C.sub.3 -halogenoalkyl, R.sup.6 and R.sup.7 independently of one another represent hydrogen, or C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.3 -C.sub.6 -alkenyl or C.sub.1 -C.sub.6 -alkoxy-C.sub.2 -C.sub.6 -alkyl, each of which is optionally substituted by fluorine or chlorine, or phenyl or benzyl, each of which is optionally substituted by fluorine, chlorine, bromine, C.sub.1 -C.sub.5 -halogenoalkyl, C.sub.1 -C.sub.5 -alkyl or C.sub.1 -C.sub.5 -alkoxy, or together represent a C.sub.3 -C.sub.6 -alkylene radical which is optionally substituted by C.sub.1 -C.sub.4 -alkyl and in which a methylene group is optionally replaced by oxygen or sulphur, R.sup.13 represents hydrogen or C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy, each of which is optionally substituted by fluorine or chlorine, or C.sub.3 -C.sub.7 -cycloalkyl which is optionally substituted by fluorine, C.sub.1 -C.sub.2 -alkyl or C.sub.1 -C.sub.2 -alkoxy and in which a methylene group is optionally replaced by oxygen or sulphur, or phenyl, phenyl-C.sub.1 -C.sub.3 -alkyl or phenyl-C.sub.1 -C.sub.2 -alkyloxy, each of which is optionally substituted by fluorine, chlorine, bromine, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -alkoxy, C.sub.1 -C.sub.2 -halogenoalkyl, C.sub.1 -C.sub.2 -halogenoalkoxy, nitro or cyano, R.sup.14 represents hydrogen or C.sub.1 -C.sub.6 -alkyl, or R.sup.13 and R.sup.14 together represent C.sub.4 -C.sub.6 -alkanediyl, R.sup.15 and R.sup.16 are identical or different and represent C.sub.1 -C.sub.4 -alkyl, or R.sup.15 and R.sup.16 together represent a C.sub.2 -C.sub.3 -alkanediyl radical which is optionally substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -halogenoalkyl or by phenyl which is optionally substituted by fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.2 -halogenoalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.2 -halogenoalkoxy, nitro or cyano, R.sup.17 and R.sup.18 independently of one another represent hydrogen, or C.sub.1 -C.sub.8 -alkyl which is optionally substituted by fluorine or chlorine, or phenyl which is optionally substituted by fluorine, chlorine, C.sub.1 -C.sub.4 -alkyl C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.2 -halogenoalkyl, C.sub.1 -C.sub.2 -halogenoalkoxy, nitro or cyano, or R.sup.17 and R.sup.18 together with the carbon atom to which they are bonded, represent C.sub.1 -C.sub.6 -cycloalkyl which is optionally substituted by C.sub.1 -C.sub.3 -alkyl or C.sub.1 -C.sub.3 -alkoxy and in which a methylene group is optionally replaced by oxygen or sulphur, R.sup.19 and R.sup.20 independently of one another represent C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkylamino, C.sub.3 -C.sub.6 -alkenylamino, di-(C.sub.1 -C.sub.6 -alkyl)amino or di-(C.sub.3 -C.sub.6 -alkenyl)amino.

4. A compound of the formula (I) according to claim 1, in which X represents methyl, ethyl, n-propyl or iso-propyl, Y represents fluorine, chlorine, bromine, methyl, ethyl, n-propyl or iso-propyl, Z represents fluorine, chlorine, bromine, methyl, ethyl, n-propyl or iso-propyl, in this case one of the radicals Y and Z always represents halogen and the other alkyl, Het represents one of the groups ##STR281## A represents hydrogen, or C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.6 -alkoxy-C.sub.1 -C.sub.4 -alkyl, poly-C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.6 -alkylthio-C.sub.1 -C.sub.4 -alkyl, each of which is optionally substituted by fluorine or chlorine, or C.sub.3 -C.sub.6 -cycloalkyl which is optionally substituted by fluorine, chlorine, methyl or methoxy and in which one or two methylene groups are optionally replaced by oxygen and/or sulphur, or phenyl, furanyl, thienyl, pyridyl or benzyl, each of which is optionally substituted by fluorine, chlorine, bromine, methyl, ethyl, n-propyl, iso-propyl, methoxy, ethoxy, trifluoromethyl, trifluoromethoxy, cyano or nitro, B represents hydrogen, C.sub.1 -C.sub.8 -alkyl or C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.2 -alkyl or A, B and the carbon atom to which they are bonded represent C.sub.3 -C.sub.8 -cycloalkyl or C.sub.5 -C.sub.8 -cycloalkenyl, in which in each case a methylene group is optionally replaced by oxygen or sulphur and each of which is optionally substituted by methyl, ethyl, n-propyl, iso-propyl, butyl, iso-butyl, sec-butyl, tert-butyl, cyclohexyl, trifluoromethyl, methoxy, ethoxy, n-propoxy, iso-propoxy, butoxy, iso-butoxy, sec-butoxy, tert-butoxy, methylthio, ethylthio, fluorine, chlorine or phenyl, or A, B and the carbon atom to which they are bonded very particularly preferably represent C.sub.1 -C.sub.6 -cycloalkyl which is substituted by an alkylenediyl group optionally containing an oxygen or sulphur atom or by an alkylenedioxyl group which, with the carbon atom to which it is bonded, forms a further five- or six-membered ring, or A, B and the carbon atom to which they are bonded represent C.sub.3 -C.sub.6 -cycloalkyl or C.sub.5 -C.sub.6 -cycloalkenyl, in which two substituents, together with the carbon atoms to which they are bonded, represent C.sub.3 -C.sub.4 -alkanediyl, C.sub.3 -C.sub.4 -alkenediyl or butadienediyl, in which in each case a methylene group is optionally replaced by oxygen or sulphur, D represents hydrogen, or C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.4 -alkenyl, C.sub.3 -C.sub.4 -alkinyl, C.sub.1 -C.sub.6 -alkoxy-C.sub.2 -C.sub.4 -alkyl, poly-C.sub.1 -C.sub.4 -alkoxy-C.sub.2 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkylthio-C.sub.2 -C.sub.4 -alkyl or C.sub.3 -C.sub.6 -cycloalkyl, each of which is optionally substituted by fluorine or chlorine, and in which one or two non-directly adjacent methylene groups are optionally replaced by oxygen andlor sulphur, or phenyl, flianyl, pyridyl, thienyl or benzyl, each of which is optionally substituted by fluorine, chlorine, bromine, methyl, ethyl, n-propyl, iso-propyl, methoxy, ethoxy, trifluoromethyl, trifluoromethoxy, cyano or nitro, or A and D together represent C.sub.3 -C.sub.5 -alkanediyl or C3-C.sub.5 -alkenediyl group in which in each case a methylene group is optionally replaced by oxygen or sulphur and each of which is substituted when Het is (1), and optionally substituted when Het is (4), by fluorine, chlorine, hydroxyl, mercapto or by C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.3 -C.sub.6 -cycloalkyl, phenyl, or benzoyloxy, each of which is substituted when Het is (1), and optionally substituted when Het is (4), by fluorine or chlorine, or which optionally contains one of the following groups ##STR282## or A and D represent, in the case of the compounds of the formula (I-1), together with the atoms to which they are bonded, one of the following groups: ##STR283## G represents, in the case in which Het represents the radical (1), hydrogen (a) or, in the case in which Het represents one of the radicals (1) or (4), one of the groups ##STR284## in which E represents a metal ion equivalent or an ammonium ion, L represents oxygen or sulphur and M represents oxygen or sulphur, R.sup.1 represents C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.14 -alkenyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkylthio-C.sub.1 -C.sub.6 -alkyl, poly-C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl, each of which is optionally substituted by fluorine or chlorine, or C.sub.3 -C.sub.6 -cylcloalkyl which is optionally substituted by fluorine, chlorine, methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, tert-butyl, methoxy, ethoxy, n-propoxy or iso-propoxy and in which one or two methylene groups are optionally replaced by oxygen and/or sulphur, phenyl which is optionally substituted by fluorine, chlorine, bromine, cyano, nitro, methyl, ethyl, n-propyl, i-propyl, methoxy, ethoxy, trifluoromethyl, trifluoromethoxy, methylthio, ethylthio, methylsulphonyl or ethylsulphonyl, benlzyl which is optionally substituted by fluorine, chlorine, bromine, methyl, ethyl, n-propyl, i-propyl, methoxy, ethoxy, trifluoromethyl or trifluoromethoxy, furanyl, thienyl or pyridyl, each of which is optionally substituted by fluorine, chlorine, bromine, methyl or ethyl, phenoxy-C.sub.1 -C.sub.4 -alkyl which is optionally substituted by fluorine, chlorine, methyl or ethyl, or pyridyloxy-C.sub.1 -C.sub.4 -alkyl, pyrimidyloxy-C.sub.1 -C.sub.4 -alkyl or thiazolyloxy-C.sub.1 -C.sub.4 -alkyl, each of which is optionally substituted by fluorine, chlorine, amino, methyl or ethyl, R.sup.2 represents C.sub.1 -C.sub.14 -alkyl, C.sub.2 -C.sub.14 -alkenyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.2 -C.sub.6 -alkyl or poly-C.sub.1 -C.sub.4 -alkoxy-C.sub.2 -C.sub.6 -alkyl, each of which is optionally substituted by fluorine or chlorine, C.sub.3 -C.sub.6 -cycloalkyl which is optionally substituted by fluorine, chlorine, methyl, ethyl, n-propyl, iso-propyl or methoxy, or phenyl or benzyl, each of which is optionally substituted by fluorine, chlorine, cyano, nitro, methyl, ethyl, n-propyl, i-propyl, methoxy, ethoxy, trifluoromethyl or trifluoromethoxy, R.sup.3 represents methyl, ethyl, propyl, isopropyl, each of which is optionally substituted by fluorine or chlorine, or phenyl or benzyl, each of which is optionally substituted by fluorine, chlorine, bromine, methyl, ethyl, propyl, iso-propyl, tert-butyl, methoxy, ethoxy, isopropoxy, tert-butoxy, trifluoromethyl, trifluoromethoxy, cyano or nitro, R.sup.4 and R.sup.5 independently of one another represent C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylamino, di-(C.sub.1 -C.sub.4 -alkyl)amino or C.sub.1 -C.sub.4 -alkylthio, each of which is optionally substituted by fluorine or chlorine, or phenyl, phenoxy or phenylthio, each of which is optionally substituted by fluorine, chlorine, bromine, nitro, cyano, methyl, methoxy, trifluoromethyl or trifluoromethoxy, R.sup.6 and R.sup.7 independently of one another represent hydrogen, or C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.3 -C.sub.4 -alkenyl or C.sub.1 -C.sub.4 -alkoxy-C.sub.2 -C.sub.4 -alkyl, each of which is optionally substituted by fluorine or chlorine, or phenyl or benzyl, each of which is optionally substituted by fluorine, chlorine, bromine, methyl, methoxy or trifluoromethyl, or together represent a C.sub.5 -C.sub.6 -alkylene radical which is optionally substituted by methyl or ethyl and in which a methylene group is optionally replaced by oxygen or sulphur, R.sup.13 represents hydrogen or C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, each of which is optionally substituted by fluorine or chlorine, C.sub.3 -C.sub.6 -cycloakyl, or phenyl, phenyl-C.sub.1 -C.sub.2 -alkyl or benzyloxy, each of which is optionally substituted by fluorine, chlorine, bromine, methyl, ethyl, iso-propyl tert-butyl, methoxy, ethoxy, iso-propoxy, tert-butoxy, trifluoromethyl, trifluoromethoxy, nitro or cyano, R.sup.14 represents hydrogen or C.sub.1 -C.sub.4 -alkyl, or R.sup.13 and R.sup.14 together represent C.sub.4 -C.sub.6 -alkanediyl, R.sup.15 and R.sup.16 are identical or different and represent methyl or ethyl, or R.sup.15 and R.sup.16 together represent a C.sub.2 -C.sub.3 -alkanediyl radical which is optionally substituted by methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, tert-butyl or by phenyl which is optionally substituted by fluorine, chlorine, methoxy, trifluoromethyl, trfluoromethoxy, nitro or cyano.

5. Process for the preparation of compounds of the formula (I) according to claim 1, characterized in that (A) compounds of the formula (I-1-a) ##STR285## in which A, B, D, X, Y and Z have the meanings given in claim 1, are obtained when compounds of the formula (II) ##STR286## in which A, B, D, X, Y and Z have the meanings given above, and R.sup.8 represents alkyl, are intramolecularly condensed in the presence of a diluent and in the presence of a base, and optionally then the compounds thus obtained of the formula (I-1-a) shown above, compounds of the formula (I-4-a) ##STR287## in which A, D, X, Y and Z have the meanings given above, in each case are reacted (G).alpha.) with acid halides of the formula (X) ##STR288## in which R.sup.1 has the meaning given above and Hal represents halogen, or .beta.) with carboxylic anhydrides of the formula (XI) in which R.sup.1 has the meaning given above, if appropriate in the presence of a diluent and if appropriate in the presence of an acid-binding agent, (H) with chloroformic acid esters or chloroformic acid thioesters of the formula (XII) in which R.sup.2 and M have the meanings given above, if appropriate in the presence of a diluent and if appropriate in the presence of an acid-binding agent, or (I).alpha.) with chloromonothioformic acid esters or chlorodithioformic acid esters of the formula (XIII) ##STR289## in which M and R.sup.2 have the meanings given above, if appropriate in the presence of a diluent and if appropriate in the presence of an acid-binding agent or .beta.) with carbon disulphide and then with compounds of the formula (XIV) in which R.sup.2 has the meaning given above and Hal represents chlorine, bromine or iodine, if appropriate in the presence of a diluent and if appropriate in the presence of a base, (J) with sulphonyl chlorides of the formula (XV) in which R.sup.3 has the meaning given above, if appropriate in the presence of a diluent and if appropriate in the presence of an acid-binding agent, or (K) with phosphorus compounds of the formula (XVI) ##STR290## in which L, R.sup.4 and R.sup.5 have the meanings given above and Hal represents halogen, if appropriate in the presence of a diluent and if appropriate in the presence of an acid-binding agent, or (L) with metal compounds or amines of the formula (XVII) or (XVIII) ##STR291## in which Me represents a mono- or divalent metal, t represents the number 1 or 2 and R.sup.10, R.sup.11, R.sup.12 independently of one another represent hydrogen or alkyl, if appropriate in the presence of a diluent, or (M).alpha.) with isocyanates or isothiocyanates of the formula (XIX) in which R.sup.6 and L have the meanings given above, if appropriate in the presence of a diluent and if appropriate in the presence of a catalyst, or .beta.) with carbamoyl chlorides or thiocarbamoyl chlorides of the formula (XX) ##STR292## in which L, R.sup.6 and R.sup.7 have the meanings given above, if appropriate in the presence of a diluent and if appropriate in the presence of an acid-binding agent.

6. A pesticidal composition comprising a pesticidally effective amount of a compound according to claim 1 and an extender.

7. A method of combating unwanted pests which comprises administering to such pests or to a locus from which it is desired to exclude such pests a pesticidally effective amount of a compound according to claim 1.

8. A herbicidal composition comprising a herbicidally effective amount of a compound according to claim 1 and an extender.

9. A method of combating unwanted vegetation which comprises administering to such vegetation or to a locus from which it is desired to exclude such vegetation a herbicidally effective amount of a compound according to claim 1.