Abstract
The treatment of several branched methylchlorooligosilanes (Si4, Si5) with diethylamine leads to a partial or complete substitution of the chloro substituents for diethylamino groups under formation of the first known (diethylamino)-methylchlorooligosilanes containing more than two Si atoms. The condensation of (Et2N)2MeSiSiMeCl(NEt2) (1d) with Li in THF yields the linear tetrasilane (Et2N)2MeSiSiMe(NEt2)SiMe(NEt2)SiMe(Et2N)2(2a). The NMR investigations provided information of the general shift ranges of several Si units in (diethylamino)-methylchlorooligosilane systems as well as the number of stereoisomers of the prepared products.
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