On the Lower Boiling Product of Silicon-methylchloride Reaction

Abstract
(1) Tetramethylsilane, dimethylchlorosilane and methyldichlorosilane and a small amounts of trichlorosilane and hydrocarbon by-product were found in the lower boiling product (b. p. 26°–40°C) of silicon methylchloride reaction. (2) Dimethylethoxysilane and methyldiethoxysilane besides small amounts of dimethyldiethoxysilane and triethoxysilane were found in the ethanolysis product. (3) Owing to the contamination of the hydrocarbon by-product, dimethylchlorosilane could not be isolated by repeated distillation. To characterize this substance, it was synthesized from dimethylethoxysilane and benzoylchloride. (4) By hydrolysis, linear copolymers M′Dn′M′ and M′DnM′ were found. Of these, copolymers M′Dn′M′ having two to eight silicon atoms and M′DM′ have been characterized.

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