申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US04539417A1
公开(公告)日:1985-09-03
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.
该发明提供了一种新型的有机硅化合物聚(二甲基硅亚甲基)甲基乙炔化合物,化学式为MeC.tbd.C--SiMe.sub.2 --CH.sub.2 --SiMe.sub.2).sub.n Me,其中Me是甲基,n是1到25的正整数。该化合物通过将化学式为MeC.tbd.CMgX的丙炔基镁卤化物(其中X是卤素原子),或者化学式为MeC.tbd.C--SiMe.sub.2 --CH.sub.2 MgCl的(丙炔基二甲基硅基)甲基镁氯化物与氯甲基二甲基氯硅烷在金属镁存在下反应,并水解反应产物来合成。具体地,1-丙炔基-1,1,3,3,3-五甲基二硅亚甲基,即n=1的这种创新化合物,是通过将(丙炔基二甲基硅基)甲基镁氯化物与三甲基氯硅烷反应合成的。