Pericyclynosilanes: synthesis of a new class of cyclic organosilicon compounds
作者:Roberto Bortolin、Bhukan Parbhoo、Scott S. D. Brown
DOI:10.1039/c39880001079
日期:——
characterised; when the organic substituents present in the diorganodiethynylsilane differ from those of the diorganodichlorosilane, a redistribution reaction is observed, leading to a product in which the organosilicon units are randomly distributed.
Ethynylsilanes, RnSi(CCH)4-n (n = 0 to 3), can be prepared in satisfactory yields from RnSiCl4-n and HCCMgCl in tetrahydrofuran. Losses occur through (a) polymerization under the influence of the cyclic ether and (b) metallation of the ethynylsilanes to SiCCMgCl which provokes the formation of sila-acetylene chains and rings. Some of these compounds of higher molecular weight have been isolated
乙炔基硅烷R n Si(CCH)4-n(n = 0至3),可以由R n SiCl 4-n和HCCMgCl在四氢呋喃中以令人满意的产率制备。损失是通过(a)在环醚的影响下聚合和(b)乙炔基硅烷金属化成SiCCMgCl引起的,从而促使形成硅乙炔链和环。这些高分子量化合物中的一些已经被分离出来。