Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 353, Issue 11-12, Pages 1943-1948Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201100178
Keywords
asymmetric catalysis; cyclization; dihydropyranones; N-heterocyclic carbenes; organocatalysis; vinylketenes
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Funding
- National Natural Science Foundation of China [20872143, 20932008]
- Ministry of Science and Technology of China [2011CB808600]
- Chinese Academy of Sciences
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A straightforward synthesis of optically active trifluoromethyl dihydropyranones and spirocyclic oxindole-dihydropyranones has been realized by the chiral N-heterocyclic carbenes-catalyzed cyclization of alpha,beta-unsaturated beta-methylacyl chlorides with activated trifluoromethyl ketones or isatin derivatives.
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