N-ACYL-N-PHENYLTETRAHYDROPHTHALAMIC ACID DERIVATIVES METHODS OF PRODUCING SAME, AND HERBICIDES CONTAINING SAME AS EFFECTIVE COMPONENTS

摘要

The invention provides N-acyl-N-phenyltetrahydro-phthalamic acid derivatives represented by the general formula ¢I!, methods of producing the same, and herbicides containing the same as the effective components, ¢I! wherein X and Y each individually represent hydrogen atoms or halogen atoms, R1 represents a hydrogen atom, a halogen atom, a lower alkoxy group, a lower alkenyloxy group, a lower alkynyloxy group, a lower alkoxyalkoxy group or a lower alkoxycarbonylalkoxy group, R2 represents a lower alkyl group, a halogenated lower alkyl group, or a substituted or unsubstituted phenyl group, and R3 represents a lower alkoxy group, a lower alkenyloxy group, a lower alkynyloxy group, a lower alkoxyalkoxy group, a benzyloxy group or a lower alkoxycarbonylalkoxy group. The herbicides which are very useful can be widely applied to upland, paddy field, orchard, turf, forest, non-crop land, etc, and are not harmful to crops.