[EN] METHOD FOR PREPARING ARYLALKOXYSILANES BY DEHYDROGENATIVE SILYLATION [FR] PROCÉDÉ DE PRÉPARATION D'ARYLALCOXYSILANES PAR SILYLATION DÉSHYDROGÉNANTE
[EN] METHOD FOR PREPARING ARYLALKOXYSILANES BY DEHYDROGENATIVE SILYLATION<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ARYLALCOXYSILANES PAR SILYLATION DÉSHYDROGÉNANTE
申请人:DOW SILICONES CORP
公开号:WO2018190999A1
公开(公告)日:2018-10-18
Claimed is a method involving dehydrogenative silylation of aromatic compounds under Rh-catalysis to give an arylalkoxysilane. The method includes the steps of: 1) combining, under conditions appropriate to form the arylalkoxysilane, starting materials including A) an alkoxysilane having at least one silicon bonded hydrogen atom per molecule; (I) B) an aromatic compound having a carbon-hydrogen bond; and C) a rhodium bisphospholane catalyst. Additional starting materials such as D) a hydrogen acceptor and/or E) a solvent may be added during step 1). The method may further include 2) recovering the arylalkoxysilane. In a preferred embodiment the Rhodium bisphospholane catalyst is of type (II).