作者:Dietmar Seyferth、Earle Marie Hanson
DOI:10.1016/s0022-328x(00)82988-5
日期:1971.2
The silicon-substituted organomercurials (Me3SiCCl2)2Hg, (Me3SiCBr2)2Hg and (Me3SiCHBr)2Hg have been evaluated as potential divalent carbon transfer agents. (Me3SiCCl2)2Hg, in combination with an equimolar quantity of diphenylmercury, was found to react with olefins at ca 120–130° to give x-chloro-x-trimethylsilylcyclopropanes in moderate to good yield. Me3SiCCl2Hg bond homolysis, which is a minor
已经评估了硅取代的有机汞(Me 3 SiCCl 2)2 Hg,(Me 3 SiCBr 2)2 Hg和(Me 3 SiCHBr)2 Hg作为潜在的二价碳转移剂。(ME 3 SiCCl 2)2汞柱,与二苯基汞等摩尔量组合,已发现在约120-130°,得到与烯烃反应X氯代X -trimethylsilylcyclopropanes在中度至良好的产率。Me 3 SiCCl 2Hg键均质化是在120°时的次要反应,在220°时成为主要过程,证据表明,三甲基甲硅烷基二氯甲基自由基形成了偶合并提取了氢和氯。在二苯汞存在下,(Me 3 SiCBr 2)2 Hg与环己烯在95°下反应以中等收率得到7-溴-7-三甲基甲硅烷基正戊烷,但即使在160°下,(Me 3 SiCHBr)2 Hg也太稳定,用作二价碳转移剂。