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

✍ Scribed by Jakob Toräng; Sylvia Vanderheiden; Martin Nieger; Stefan Bräse

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 198 KB
Volume: 2007
Category: Article
ISSN: 1434-193X
DOI: 10.1002/ejoc.200600718

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✦ Synopsis

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)

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