期刊
CHEMISTRYOPEN
卷 5, 期 4, 页码 311-314出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/open.201600034
关键词
[3+2] cyclization; asymmetric organocatalysis; regioselectivity; stereoselectivity; spirooxindole enols
资金
- Joint NSFC-ISF Research Program
- National Basic Research Program of China [(973)-2015CB856603]
- National Natural Science Foundation of China [20472096, 21372241, 21361140350, 20672127, 21421091, 21372250, 21121062, 21302203, 20732008, 21572052]
- National Natural Science Foundation of China
- Israel Science Foundation
A novel cinchona-alkaloid-derived organocatalyst has been developed to catalyze the asymmetric regioselective [3+2] cycloaddition of 3-isothiocyanato oxindoles with dibenzylidene ketones. A series of spirooxindole enols could be obtained in high yields with good-to-excellent diastereo- and enantioselectivities.
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