N-Heterocyclic Carbene-Mediated Organocatalytic Transfer of Tin onto Aldehydes: An Easy Access to syn-Diols and Mechanistic Studies
作者:Romain Blanc、Paola Nava、Michel Rajzman、Laurent Commeiras、Jean-Luc Parrain
DOI:10.1002/adsc.201200063
日期:2012.7.9
combines (i) a full study of the preparation of γ‐silyloxyallylstannanes from β‐substituted enals, (ii) a “one‐pot” sequence (in inter‐ and intramolecular version) including N‐heterocyclic carbene (NHC)‐catalyzed silylstannation reaction/Lewis acid‐promoted allylstannation reaction to furnish the corresponding syn‐diols, and (iii) mechanistic studies on the organocatalytic 1,2‐addition.
介绍了有关将锡转移到醛上的有效有机催化程序的初步通讯的更新。此更新结合了(i)从β-取代的烯醛制备γ-甲硅烷基氧烯丙基锡的完整研究,(ii)包括N-杂环卡宾(NHC)催化的“单锅”序列(分子间和分子内版本)甲硅烷基锡反应/路易斯酸促进的烯丙锡烷基化反应可提供相应的合成二醇,以及(iii)有机催化1,2-加成反应的机理研究。