Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany.
J Am Chem Soc. 2010 Jan 27;132(3):1123-6. doi: 10.1021/ja9091374.
Two new approaches for synthesizing RSiCl, (R = PhC(NtBu)(2)) are reported by the reaction of RSiHCl(2) with bis-trimethyl silyl lithium amide and N-heterocyclic carbene respectively. In the former method silylene is produced in 90% yield. The silylene was treated with biphenyl alkyne to afford the disilacyclobutene system. This is a rare example of two five-coordinate silicon centers arranged adjacent to each other in a four-membered ring. Furthermore, we fluorinated the four-membered ring by trimethyltin fluoride to obtain the fluoro substituted disilacyclobutene.
两种合成 RSicl 的新方法，（R=PhC（NtBu）（2）），通过 RSiHCl（2）与双三甲基硅基锂酰胺和 N-杂环卡宾分别反应得到。在前一种方法中，硅烯以 90%的产率生成。硅烯与联苯炔反应得到二硅环丁烯体系。这是一个罕见的例子，两个五配位的硅中心在一个四元环中彼此相邻排列。此外，我们用三甲基氟化锡氟化四元环，得到氟取代的二硅环丁烯。
