N-PHENYLTETRAHYDROPHTHALAMIC ACID DERIVATIVE, PROCESS FOR PRODUCING THE SAME, AND HERBICIDE CONTAINING THE SAME AS ACTIVE INGREDIENT

摘要

The invention provides N-phenyltetrahydrophthalamic acid derivatives represented by the general formula ÄIÜ, methods of producing the same, herbicides containing the same as the effective components, imidoylchloride derivatives as the intermediate products and methods of producing the same, <CHEM> wherein X and Y each individually represent hydrogen atoms or halogen atoms, R<1> represents a lower alkoxycarbonylalkylthio group, R<2> represents a lower alkyl group, a halogenated lower alkyl group or a substituted or unsubstituted phenyl group, and R<3> represents a lower alkoxy group, a lower alkenyloxy group, a lower alkynyloxy group, or a lower alkoxyalkoxy group. The herbicides of the present invention, 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.