Pure organyl-halosilane preparation in high yield from hydro-silane and hydrogen halide over Lewis acid catalyst, for use e.g. as intermediate for silicones or as protective reagent in drug synthesis

摘要

The invention relates to a method for preparing organyl chlorosilanes of the general formula R4-cSiXc (1) by reacting hydrogen halide with silanes of the general formula R4-a-bSiHaXb (2), wherein R, X, c, a and b have the meaning cited in claim 1, in the presence of a Lewis acid catalyst.