作者:Subhash Chandra Ghosh、Soon Hyeok Hong
DOI:10.1002/ejoc.201000362
日期:2010.8
3 , an N-heterocyclic carbene (NHC), and pyridine, was developed. Of the screened NHC precursors, a less bulky one gave better yields for modestly sterically hindered substrates. In a search for the true catalytic intermediates, Grubbs catalysts were found to be active for the amidation of alcohols under basic conditions, suggesting that an Ru complex supported by an NHC ligand can catalyze the reaction
开发了一种用于从胺和醇直接合成酰胺的催化剂,该催化剂由经济上有吸引力且易于获得的 RuCl 3 、N-杂环卡宾 (NHC) 和吡啶原位生成。在筛选出的 NHC 前体中,体积较小的前体对适度空间位阻的底物具有更好的产率。在寻找真正的催化中间体时,发现 Grubbs 催化剂在碱性条件下对醇的酰胺化具有活性,这表明由 NHC 配体负载的 Ru 配合物可以催化反应。