Substituted 1-H-3-phenyl-5-cycloalkylpyrrolidine-2,4-diones, their preparation and their use

A 1-H-3[P]-phenyl-5-cycloalkylpyrrolidine-2,4-dione[s] of the formula [(I)] ##STR339## in which A represents optionally substituted cycloalkyl and

• B represents optionally substituted alkyl,
• X represents alkyl, halogen or alkoxy,
• Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl,
• Z represents alkyl, halogen or alkoxy,
• n represents a number 0, 1, 2 or 3,
• G represents hydrogen (a) or the groups ##STR340## L and M represent oxygen and/or sulphur, R.sup.1 represents in each case optionally halogen-substituted alkyl, alkenyl, alkoxyalkyl, alkylthioalkyl, polyalkoxyalkyl or cycloalkyl, wherein said cycloalkyl group is optionally interrupted by hetero atoms, or represents optionally substituted phenyl, optionally substitute phenylalkyl, substituted hetaryl, substituted phenoxyalkyl or substituted hetaryloxyalkyl,
• R.sup.2 represents in each case optionally halogen-substituted alkyl, alkenyl, alkoxyalkyl, polyalkoxyalkyl or in each case optionally substituted cycloalkyl, phenyl or benzyl,
• R.sup.4 and R.sup.5 independently of one another represent in each case optionally halogen-substituted alkyl, alkoxy, cycloalkyloxy, alkylamino, dialkylamino, alkylthio, alkenylthio or cycloalkylthio and in each case optionally substituted phenyl, phenoxy, benzyloxy or phenylthio,
• R.sup.6 and R.sup.7 independently of one another represent hydrogen, in each case optionally halogen-substituted alkyl, alkenyl, alkoxy or alkoxyalkyl, optionally substituted phenyl, optionally substituted benzyl, or together with the N-atom to which they are bound represent a cycle which is optionally interrupted by oxygen or sulphur.