HERBICIDAL PYRROLIDINONES

摘要

: N-(Substituted heterocyclic)-2-pyrrolidinone derivatives useful as herbicides both alone and in combination with other herbicides. They have the formula wherein: R1 is C1-C10 alkyl or C3-C8 cycloalkyl; R2 is cyano or -?-R4; R3 is C1-C6 alkyl; R4 is hydroxy, C1-C6 alkoxy or NH2; m is 1 or 2; and X is O, S or NH.