ACYCLIC, ALICYCLIC AND AROMATIC N-SUBSTITUTED HALO-SUBSTITUTED 2-PYRROLIDINONES AND THEIR ITY AS HERBICIDES

摘要

ACYCLIC, ALICYCLIC AND AROMATIC N-SUBSTITUTED HALO-2-PYRROLIDINONES AND THEIR UTILITY AS HERBICIDES Acyclic, alicyclic, N-substituted halo-2-pyrrolidinones having the formula in which Q is oxygen or sulfur; R is lower alkyl, haloalkyl, alkenyl, cycloalkyl, cycloalkylalkyl, benzyl and chlorobenzyl; X is hydrogen or chlorine, Y is chlorine or bromine and Z is chlorine or bromine, provided that when R is allyl, Y and Z are each chlorine or bromine, and provided that when R is cyclohexyl, X is other than chlorine; and monocyclic aromatic N-substituted halo-2-pyrrolidinones having the formula in which X is hydrogen, chlorine or methyl; Y is hydrogen, chlorine or bromine, Z is chlorine or bromine; R2 is alkyl or hydrogen; R is hydrogen, alkyl, acetyl, chlorine, bromine, fluorine, iodine, trifluoromethyl, nitro, cyano, alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, trifluoromethylthio, trifluoromethylsulfinyl, trifluoromethylsulfonyl, pentafluoropropionamido, or 3-methylureido; and R1 is hydrogen, alkyl, chlorine or trifluoromethyl. The compounds of this invention are prepared by a novel process and are useful as herbicides.