Grignard coupling high selectivity of dialkyl in the reaction -, diaryl -, and alkyl aryl - dihalosilane method of manufacturing a

摘要

dialkyl -, diaryl -, or alkylaryl - method of making a high selectivity is provided a dihalosilane in Grignard coupling reaction. And more particularly, alkyl - or aryl - alkyl the Grignard reagent containing magnesium halide - or aryl trihalosilane before is reacted with a precursor or agent, R ₂ S1X ₂ and R ₃ SiX (wherein, each R is independently selected as an alkyl or aryl group, and X is a halogen group) by generating a product mixture, R ₂ SiX ₂ the product is formed with high selectivity. High selectivity, R _{, which is formed in this reaction 2} SiX ₂ product: R ₃ mass ratio of SiX product 7: it is defined to be greater than 1.