Synthesis of 3-Alkylcoumarins from Salicylaldehydes and α,β-Unsaturated Aldehydes Utilizing Nucleophilic Carbenes: A New Umpoled Domino Reaction
作者:Jakob Toräng、Sylvia Vanderheiden、Martin Nieger、Stefan Bräse
DOI:10.1002/ejoc.200600718
日期:2007.2
Starting from salicylaldehydes and α,β-unsaturated aldehydes, a new coumarin synthesis in ionic liquids is presented. The key feature is the generation of N-heterocyclic carbenes (NHC) and an Umpolung reaction. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
从水杨醛和α,β-不饱和醛开始,提出了一种在离子液体中合成香豆素的新方法。关键特征是生成 N-杂环卡宾 (NHC) 和 Umpolung 反应。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)