Trichlorosilyl groups containing organochlorosilanes and their preparation methods by the double-silylation of olefins with trichlorosilane

摘要

The present invention provides organosilicon compounds containing two trichlorosilyl groups and their preparation methods. Organosilicon compounds of formula II are prepared by reacting linear chain or cyclic olefins of formula I with trichlorosilane in the presence of quaternary organophosphonium salt as a catalyst.; chemistry chemdraw file chemistry mol file ;In formulas I and II, R¹ and R² may be identical or different and represent a hydrogen atom, a linear or a cyclic C₁-C₈ alkyl, a linear or a cyclic C₁-C₈ alkenyl, benzyl, phenyl, a C₁-C₈ alkyl substituted phenyl group, two functional groups between R¹ and R² may be covalently bonded to form a C₄-C₈ ring with or without a carbon-carbon double bond.