Preparation of dimethylchlorosilane

Details Preparation of dimethylchlorosilane Preparation of dimethylchlorosilane

2008-02-20

2010-02-02

Sullivan, Daniel M (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

Reexamination Certificate

active

07655812

ABSTRACT:
Dimethylchlorosilane is prepared by reacting 1,2-tetramethyldichlorodisilane with hydrogen chloride in the presence of a catalyst mixture of a) palladium, b) a tertiary amine, and c) a tertiary phosphine having at least one phenyl group having at least one functional group other than hydrogen. The catalyst does not lose its activity upon contact with hydrogen chloride at low temperatures and ensures production of dimethylchlorosilane in high yields.

REFERENCES:
patent: 5502230 (1996-03-01), Mautner et al.
patent: 6271407 (2001-08-01), Colin et al.
patent: 6939984 (2005-09-01), Straussberger
patent: 54-9228 (1979-01-01), None
patent: 8-81477 (1996-03-01), None
R. Calas et al., Journal of Organometallic Chemistry, vol. 225, pp. 117-130 (1982).

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