New polyunsaturated organosilicon dendrimers based on 1, 1-diethynyl-and 1-vinyl-1-ethynylsilacycloalkanes

LV Zhilitskaya, EE Istomina, OG Yarosh…

Index: Zhilitskaya; Istomina; Yarosh; Voronkov Russian Journal of General Chemistry, 2006 , vol. 76, # 8 p. 1261 - 1265

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Citation Number: 6

Abstract

Abstract 1, 1-Dichloro-and 1-vinyl-1-chlorosilacyclanes were prepared by reactions of tetrachlorosilane or vinyltrichlorosilane with magnesium and 1, 4-dibromobutane or 1, 5- dibromopentane. The reactions of the products obtained with ethynylmagnesium bromide or bis (bromomagnesio) acetylene yield the corresponding ethynylsilacyclanes. Condensation of 1, 1-diethynylsilacyclanes or bis (ethynylsilacyclopentyl) ethyne with an equimolar ...