N-Heterocyclic Carbene-Catalyzed Hydrosilylation of Styryl and Propargylic Alcohols with Dihydrosilanes
作者:Qiwu Zhao、Dennis P. Curran、Max Malacria、Louis Fensterbank、Jean-Philippe Goddard、Emmanuel Lacôte
DOI:10.1002/chem.201101822
日期:2011.8.29
Reducing alkenes to tears: Addition of structurally diverse N‐heterocyclic carbenes (NHCs) to silicon allows the reduction of propargylic and styryl alcohols through an organocatalyzed silylation/direct hydride transfer tandem reaction (see scheme). Catalytic turnover is enabled by the switch to and from hypervalent silicon. This provides a new synthetic application of NHC–main group element complexes
减少烯烃的眼泪:在硅上添加结构多样的N杂环卡宾(NHC),可通过有机催化的甲硅烷基化/直接氢化物转移串联反应还原炔丙醇和苯乙烯醇(参见方案)。切换到高价硅可以实现催化转换。这为NHC-主族元素配合物提供了新的合成应用。