Production of saturated and unsaturated silahydrocarbon mixtures using
申请人:Gulf Research & Development Company
公开号:US04572791A1
公开(公告)日:1986-02-25
The silahydrocarbon product containing at least 75 weight percent of saturated silahydrocarbons with the remainder being unsaturated silahydrocarbons is produced by a process in which admixture comprising (A) at least one alpha-olefin containing from 2 to about 20 carbon atoms per molecule, and (B) at least one alkylsilane selected from the group consisting of (i) a dialkylsilane having the formula R--SiH.sub.2 --R.sub.1 (ii) a trialkylsilane having the formula ##STR1## and (iii) mixtures thereof, wherein R and R.sub.1, the same or different, each represent an alkyl radical of from one to 20 carbon atoms per molecule with a catalyst comprising a homogeneous rhodium-containing catalyst or a heterogeneous rhodium-containing catalyst in a halogen-free inert solvent, under hydrosilylation reaction conditions to produce a mixture containing saturated and unsaturated silane hydrocarbons useful as lubricants. The unsaturated silane hydrocarbons can be substituted with sulfur to provide improved lubricating characteristics.