Synlett 2006(15): 2431-2434  
DOI: 10.1055/s-2006-950403
LETTER
© Georg Thieme Verlag Stuttgart · New York

Asymmetric Synthesis of Chromanones via N-Heterocyclic Carbene Catalyzed Intramolecular Crossed-Benzoin Reactions

Dieter Enders*, Oliver Niemeier, Gerhard Raabe
Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
Fax: +49(241)8092127; e-Mail: enders@rwth-aachen.de;
Further Information

Publication History

Received 10 July 2006
Publication Date:
08 September 2006 (online)

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Abstract

The enantioselective synthesis of 3-hydroxy-4-chromanones bearing a quaternary stereocenter via an N-heterocyclic ­carbene catalyzed intramolecular crossed-benzoin reaction is described.