Fluoride ion mediated reactions of disubstituted acetylenes Me3SiCCMMe3 (M=C, Si, Ge, Sn) with terminal acetylenes
作者:Edmunds Lukevics、Kira Rubina、Edgars Ābele、Mendel Fleisher、Pavel Arsenyan、Solveiga Grı̄nberga、Juris Popelis
DOI:10.1016/s0022-328x(01)01109-3
日期:2001.9
The CsF–18-crown-6 mediated reactions of disubstituted acetylenes Me3SiCCMMe3 (M=C, Si, Ge, Sn) with phenylacetylene and 2-methyl-5-pyridylacetylene in benzene have been studied. The first step of the reaction is the deprotonation of aryl acetylene by F−-ion. The carbanion formed interacts with the disubstituted acetylene. The silylated, germylated and stannylated acetylenes were formed in yields 26–91%
的CSF-18-冠-6介导的二取代的乙炔的Me反应3 SiCCMMe 3(M = C,硅,锗,锡)与苯基乙炔和苯2-甲基-5- pyridylacetylene进行了研究。该反应的第一步是芳基乙炔通过F的去质子化- -离子。形成的碳负离子与二取代的乙炔相互作用。甲硅烷基化,发芽和乙炔化的乙炔的产率为26-91%。已经进行了三甲基甲硅烷基和三甲基锗烷基转移的量子化学计算。