Substituted benzoylcyclohexane diones for use as herbicides

Substituted benzoylcyclohexanediones of the general formula (I)

• 58
• in which
• A1 represents a single bond or represents alkanediyl (alkylene) having 1 to 3 carbon atoms,
• A2 represents alkanediyl (alkylene) having 1 to 3 carbon atoms,
• R1 represents hydrogen, represents phenyl or represents in each case optionally halogen-substituted alkyl, alkylthio or alkoxycarbonyl having in each case 1 to 4 carbon atoms in the alkyl groups,
• R2 represents hydrogen or represents in each case optionally halogen-substituted alkyl or alkylthio having in each case 1 to 4 carbon atoms, or together with R1 represents alkanediyl (alkylene) having up to 4 carbon atoms, or—if R1 and R2 are attached to the same carbon atom—together with R1 and the carbon atom to which R1 and R2 are attached represents a carbonyl grouping (C═O),
• R3 represents hydrogen, nitro, cyano, carboxyl, carbamoyl, thio-carbamoyl, halogen, represents in each case optionally halogen-substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkylamino, dialkylamino, alkylsulphonylamino or dialkylamino-sulphonyl having in each case 1 to 4 carbon atoms in the alkyl groups, or represents in each case optionally halogen- or C1-C4-alkyl-substituted cycloalkylamino, cycloalkylsulphonyl, cycloalkyl-sulphonylamino or cycloalkylaminosulphonyl having in each case 3 to 6 carbon atoms,
• R4 represents hydrogen, nitro, cyano, carboxyl, carbamoyl, thio-carbamoyl, halogen, or represents in each case optionally halogen-substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkylamino, dialkylamino or dialkylaminosulphonyl having in each case 1 to 4 carbon atoms in the alkyl groups, and
• R5 represents hydrogen, represents amino, represents in each case optionally amino-, cyano-, halogen- or C1-C4-alkoxy-substituted alkyl, alkoxy, alkylamino, dialkylamino, alkylsulphonyl or alkylsulphonyl-amino having in each case 1 to 5 carbon atoms in the alkyl groups, represents in each case optionally halogen-substituted alkenyl or alkinyl having in each case up to 5 carbon atoms, represents in each case optionally cyano-, halogen- or C1-C4-alkyl-substituted cycloalkyl or cycloalkylalkyl having in each case 3 to 6 carbon atoms in the cycloalkyl group and optionally 1 to 3 carbon atoms in the alkyl moiety, represents cycloalkenyl having 5 or 6 carbon atoms, or represents in each case optionally nitro-, cyano-, carboxyl-, halogen-, C1-C4-alkyl-, C1-C4-halogenoalkyl-, C1-C4-alkoxy- or C1-C4-halogeno-alkoxy-substituted phenyl, phenyl-C1-C4-alkyl, pyridyl or pyrimidinyl,
• including all possible tautomeric forms of the compounds of the general formula (I) and the possible salts and metal complexes of the compounds of the general formula (I),
• except for the compound 1-[2,6-dichloro-3-[(2-hydroxy-6-oxo-cyclohexen-1-yl)-carbonyl]-benzyl]-3-methyl-tetrahydro-2(1H)-pyrimidinone.