期刊
TETRAHEDRON LETTERS
卷 54, 期 20, 页码 2466-2471出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2013.02.089
关键词
Domino reaction; Solid acid catalysis; 1,3-Dicarbonyls; Isatins; Malononitrile; Spirooxindoles
资金
- UGC, New Delhi
A bioglycerol derived carbon-sulfonic acid is found to catalyze efficiently the three-component one-pot condensation of isatin, malononitrile, and 1,3-dicarbonyls to afford a wide range of spirop[4H-pyran-3,3'-oxindole]derivatives in good yields and selectivity. The use of a recyclable solid acid catalyst makes this method simple, convenient, and cost-effective. (C) 2013 Elsevier Ltd. All rights reserved.
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