Preparation of hexamethyldisilane (HMDS) from chloromethyldisila

Details Preparation of hexamethyldisilane (HMDS) from chloromethyldisila Preparation of hexamethyldisilane (HMDS) from chloromethyldisila

1980-07-24

1982-01-05

Shaver, Paul F.

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

Organic compounds

Silicon containing

C07F 708

Patent

active

043095569

ABSTRACT:
An improved process for producing hexamethyldisilane by reacting ether solutions of methyl Grignard with a crude mixture of chloromethyl disilanes, the improvement which comprises obtaining higher yields and simplified purification of HMDS by the use of a mixed solvent system composed of tetrahydrofuran and the diethyl ether of tetraethylene glycol.

REFERENCES:
patent: 2908698 (1959-10-01), Kuriyagawa et al.
patent: 2923633 (1960-02-01), Stedman
patent: 3277047 (1966-10-01), Selin
patent: 3453303 (1969-07-01), Selin
Steudel et al., "J.A.C.S.," 82, pp. 6129-6132, 12/1960.

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