Abstract:
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.R1nullHCnullCHnullR2nullnull(I) 1 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.
Abstract:
A method for preparing alkyldichlorosilanes having a SinullH bond by directly reacting metallic silicon with a mixture of alkyl chloride and hydrogen chloride or alkyl chloride which generates hydrogen chloride at a reaction temperature in the presence of copper catalyst.