3-ARYL-PYRROLIDINE-2,4-DIONE DERIVATIVE

There are described novel 3-arylpyrrolidine-2,4-dione derivatives of the general formula (I) in which X represents alkyl, halogen or alkoxy, Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl, Z represents alkyl, halogen or alkoxy, n represents a number from 0-3, R represents hydrogen or the groups -CO-R , -CO-O-R , where R and R have the meaning given in the text of the application, A represents optionally halogen-substituted alkyl, alkenyl, alkynyl, alkoxyalkyl, polyalkoxyalkyl, alkylthioalkyl, or represents cycloalkyl which is optionally interrupted by hetero atoms, or represents arylalkyl which is optionally substituted by halogen, alkyl, haloalkyl, alkoxy or nitro, B and C' independently of each other represent hydrogen, alkyl or alkoxyalkyl, and the pure enantiomeric forms of compounds of the formula (I). The novel compounds have a surprising insecticidal, acaricidal, herbicidal and antimycotic activity.