2-oxo-3-pyrroline derivatives, process for their production and herbicidal composition

摘要

A herbicidal 2-oxo-3-pyrroline derivative having the formula: <IMAGE> (I) wherein X is a hydrogen atom or a halogen atom, Z is an oxygen atom or a group of the formula =N-OR1 (wherein R1 is a hydrogen atom, an alkyl group, a benzyl group or a phenyl group which is substituted by halogen atoms); and R is a hydrogen atom, an alkyl group, a benzyl group, a chloro-substituted benzyl group, a benzylidene methyl group, a group of the formula <IMAGE> wherein Y is a hydrogen atom, a halogen atom, an alkyl group, a haloalkyl group or an alkoxy group, and n is an integer of from 1 to 3, or a group of the formula ER2 wherein E is an oxygen atom, a sulfur atom or a group of the formula >N-R3, wherein R3 is a hydrogen atom, an alkyl group or an alkenyl group, and R2 is a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, a benzyl group, a phenylsulfonyl group or a group of the formula <IMAGE> wherein G is defined in the specification and m is an integer of 1-5.