Regiospecific Synthesis of Allylic Dimethylmethoxysilanes

Article abstract of DOI:10.1021/jo00317a010

Photochemically generated dimethylsilylene reacts regiospecifically with allylic methyl ethers to yield allylic dimethylmethoxysilanes.Reaction of allylic methyl ethers with dimethyldichlorosilane and sodium metal likewise gives allylic dimethylmethoxysilanes in preparatively useful yields.Regiospecificity, however, is not always observed in this latter reaction.Such allylic dimethylmethoxysilanes can be converted to allylic trimethylsilanes easily by reaction with methyllithium.