Phthalimides and herbicide comprising the same as active ingredient

Abstract From the Canadian patent

Phthalimides represented by general formula (I) wherein L represents a group , represented by the following L-1 or L-2 wherein each of R1 and R2 is , independently a hydrogen atom an alkyl group or the like, A represents an oxygen atom, a sulfur atom or - NR5 - wherein R5 is a hydrogen atom an alkyl , group, an alkenyl group or the like R represents a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group a phenyl group or the like, X , represents a halogen atom Y represents a hydrogen atom or a halogen atom and , Z represents a hydrogen atom, an alkyl group a haloalkyl group or a halogen , atom. Such phthalimides have high herbicidal effect and also high selectivity.