Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing
Patent
1984-10-09
1985-09-03
Shaver, Paul F.
Organic compounds -- part of the class 532-570 series
Organic compounds
Silicon containing
C07F 708
Patent
active
045394172
ABSTRACT:
The invention provides a novel organosilicon compound poly(dimethylsilmethylene) methylacetylene compound of the formula MeC.tbd.C--SiMe.sub.2 --CH.sub.2 --SiMe.sub.2).sub.n Me, in which Me is a methyl group and n is a positive integer of 1 to 25. The compound is synthesized by reacting a propynylmagnesium halide of the formula MeC.tbd.CMgX, in which X is a halogen atom, or (propynyl dimethylsilyl)methylmagnesium chloride of the formula MeC.tbd.C--SiMe.sub.2 --CH.sub.2 MgCl with chloromethyl dimethyl chlorosilane in the presence of metallic magnesium and hydrolyzing the reaction product. Specifically, 1-propynyl-1,1,3,3,3-pentamethyl disilmethylene, i.e. the inventive compound with n=1, is synthesized by reacting (propynyl dimethylsilyl)methylmagnesium chloride with trimethyl chlorosilane.
REFERENCES:
patent: 3178465 (1965-04-01), Huba et al.
patent: 3714118 (1973-01-01), Chandra et al.
patent: 4414403 (1983-11-01), Schilling et al.
Ishihara Toshinobu
Ohshima Mistuyoshi
Takamizawa Minoru
Yamamoto Akira
Shaver Paul F.
Shin-Etsu Chemical Co. , Ltd.
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