Synthesis of 3??Alkylcoumarins from Salicylaldehydes and α, β??Unsaturated Aldehydes Utilizing Nucleophilic Carbenes: A New Umpoled Domino Reaction

J Toraeng, S Vanderheiden, M Nieger…

Index: Toraeng, Jakob; Vanderheiden, Sylvia; Nieger, Martin; Braese, Stefan European Journal of Organic Chemistry, 2007 , # 6 p. 943 - 952

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Citation Number: 21

Abstract

Abstract 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)