PROCEDIMIENTO PARA LA OBTENCION DE DERIVADOS DE TRIFLUORMETIL-FENOXIFENIL-SILICIO.

摘要

A trifluoromethyl-phenoxy-phenyl-silicon compound is disclosed of the general formula in which X1 and X2 independently of each other represent a hydrogen, fluorine, chlorine, bromine or iodine atom, Y represents a hydrogen or halogen atom or a cyano or nitro group, n is 0 or 1, m is 0, 1, 2 or 3, p is 0, 1, 2 or 3, X3 and X4 independently of each other represent oxygen or a -CO-O- group, R1, R2, R3 and R4 independently of one another represent a hydrogen atom or a C1 to C5 alkyl group, R5 and R6 independently of each other represent a C1 to C5 alkyl group, and R7 represents a C1 to C5 alkyl or hydroxyl group, a chlorine, bromine, or iodine atom or a C2 to C5 alkenoxy, C2 to C5 alkinoxy, C1 to C5 alkylthio, C2 to C5 alkenyl-thio or C2 to C5 alkinyl-thio group or a C1 to C5 alkoxy group which is straight-chain or branched and optionally substituted by fluorine, chlorine, bromine, iodine, C1 to C5 alkoxy and/or C1 to C5 alkylthio, or represents a radical of the general formula wherein R8 and R9 independently of each other represent a phenyl radical which is optionally substituted by fluorine, bromine, and/or iodine, or represent a straight-chain or branched C1 to C5 alkyl, C2 to C5 alkenyl or C2 to C5 alkinyl group, or wherein R8 and R9, together with the nitrogen atom to which they are bonded, represent a pyrrolidyl radical which is optionally substituted by methyl and/or ethyl, represent a morpholinyl radical which is optionally substituted by methyl, or represent an azacycloheptyl, piperidyl, 3-methyl-piperidyl, 4-methyl-piperidyl, 2-ethyl-piperidyl, 4-ethyl-piperidyl, 2,3-dimethyl-piperidyl, 2,4-dimethyl-piperidyl, 2,5-dimethyl-piperidyl, or 3,5-dimethyl-piperidyl radical. The trifluoromethyl-phenoxy-phenyl-silicon compounds are useful as herbicides and plant growth regulators. Disclosed are compositions containing the same and methods for their preparation.