CN Bond Cleavage and Ring Expansion of N-Heterocyclic Carbenes using Hydrosilanes
作者:David Schmidt、Johannes H. J. Berthel、Sabrina Pietsch、Udo Radius
DOI:10.1002/anie.201204333
日期:2012.8.27
Ring expansion of NHCs! The reaction of N‐heterocyclic carbenes (NHCs) with hydrosilanes Ph4−nSiHn (n=1, 2, 3) results in complete rupture of the heterocycle and silylene insertion into one of the CN bonds of the carbene (see scheme; R=alkyl, aryl).
环扩大的NHC的!N-杂环卡宾(NHC的)的氢硅烷与pH下的反应4- Ñ的SiH Ñ(Ñ = 1,2,3)导致杂环和亚甲硅基插入的完全断裂到C中的一个见卡宾的N键(方案; R =烷基,芳基)。