Nair, Vijay Nucleophilic heterocyclic carbene catalyzed annulation of enals to chalcones in methanol: a stereoselective synthesis of highly functionalized cyclopentanes. [electronic resource] - Organic letters Jun 2009 - 2507-10 p. digital Publication Type: Journal Article ISSN: 1523-7052 Standard No.: 10.1021/ol900571x doi