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Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
; Fax: (+86) 10 6255 4449
; Tel: (+86) 10 6264 1156
Org. Biomol. Chem., 2013,11, 158-163
14 Sep 2012,
12 Oct 2012
First published online
16 Oct 2012
The N-heterocyclic carbene-catalyzed [4 + 2] cyclization of ketenes and 3-aroylcoumarins has been developed to give the corresponding dihydrocoumarin-fused multisubstituted dihydropyranones in high yield with good diastereoselectivity and high enantioselectivity.
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Organic & Biomolecular Chemistry
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