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Microwave-Promoted, One-Pot, Solvent-Free Synthesis of 4-Arylcoumarins from 2-Hydroxybenzophenones

✍ Scribed by José Crecente-Campo; M. Pilar Vázquez-Tato; Julio A. Seijas

Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 178 KB
Volume: 2010
Category: Article
ISSN: 1434-193X
DOI: 10.1002/ejoc.201000051

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✦ Synopsis

Abstract

4‐Arylcoumarins are synthesized in very good yields through solvent‐free microwave irradiation of 2‐hydroxybenzophenones and alkyl malonate in the presence of DBU. The one‐pot synthesis is carried out with Knoevenagel condensation, intramolecular lactonization, and decarboxylation reactions. The method can be applied to a broad scope of neoflavonoids.

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