Tri-organotin silitrane derivatives, processes for production thereof, and pesticidal compositions, fungicides or antifouling agents comprising said compounds as active ingredients.

摘要

A tri-organotin silatrane derivative represented by the general formula (I) <CHEM> wherein R<1> groups are identical or different and each represents an alkyl, cycloalkyl, aryl or aralkyl group, R<2>, R<3> and R<4> are identical or different and each represents a hydrogen atom or a lower alkyl group, and m is a number of 2 or 3. The tri-organotin silatrane derivative of the formula (I) is prepared by subjecting a 1-mercaptoalkyl-silatrane and a tri-organotin hydroxide or bis(tris-organotin) oxide to a dehydration reaction, or reacting a 1-mercaptoalkylsilatrane derivative with a tri-organotin halide in the presence of a dehydrohalogenation agent, or subjecting a trialkoxysilane and a trialkanolamine to an ester-interchange reaction in the presence of an alkaline catalyst. The tri-organotin silatrane derivative of the formula (I) is useful for an agricultural-horticultural pesticide, an industrial fungicide, an epidemic-preventing insecticide or an antifouling agent.