A process for the preparation of derivatives xiamidina carbo-

摘要

A compound having the formula CHEM wherein each of X1 and X2 is hydrogen, halogen, methyl, trifluormethyl, with the proviso that X1 and X2can not be hydrogen at the same time, and each of R1 and R3 is hydrogen, halogen, nitro, C1-6 haloalkyl, C2-6 alkenyloxy, or aryloxy radical selected from a group consisting of phenoxy and quinoxalinyloxy which may be substituted by nitro and/or C1-6 haloalkyl on said aromatic ring; and R2 is hydrogen, halogen, nitro, C1-8, C1-3 haloalkyl, C1-6 alkoxycarbonyl, dialkylamino, phenylazo which may be substituted by C1-3 alkyl, or Y-R4, wherein Y is O or S and R4 is C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 haloalkenyl, C2-6 alkynyl, phenylalkyl which may be substituted by halogen and/or C1-3 haloalkyl, aromatic radical selected from a group consisting of phenyl, pyridyl and quinoxalinyl which may be substituted by halogen, nitro, cyano and/or C1-3 haloalkyl on said aromatic ring; and A is Az or -SS-R5, wherein Az is heterocyclic radical selected from a group consisting of 1-benzimidazolyl, 1-benztriazolyl and 1-pyrazolyl, which may be substituted by C1-3 alkyl and/or halogen, or heterocyclic radical selected from a group consisting of 1-triazolyl and 1-imidazolyl, which may be substituted by C1-3 alkyl, and R5 is C1-18 alkyl, C3-8 cycloalkyl, phenylalkyl of phenyl which may be substituted by halogen, nitro and/or C1-8 alkyl; or its metal sa and an insecticide containing said compound and/or salt. c