Preparation of organosilanes

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

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C07F 708

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049469800

ABSTRACT:
A process for the preparation of more highly alkylated silanes. The process comprises (A) contacting a halide of silicon, a silane or a disilane, with an alkyl halide in the presence of a metal, such as aluminum, which serves as a halogen acceptor, and a sufficient quantity of a catalyst effective in improving exchange of alkyl groups from the alkyl halide with said halogen atoms of the halide of silicon; (B) reacting the halide of silicon with the alkyl halide in the presence of the metal and the catalyst at a temperature greater than about 150.degree. C. to form the more highly alkylated silanes and a metal halide; and (C) isolating and separating the more highly alkylated silanes.

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