Journal
COMPTES RENDUS CHIMIE
Volume 16, Issue 5, Pages 419-426Publisher
ACAD SCIENCES
DOI: 10.1016/j.crci.2012.11.018
Keywords
Pyrans; MCRs; Amberlyst A21; Green synthesis
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Funding
- University Grants Commission-Special Assistance Programme (UGC-SAP), North Eastern Hill University, Shillong
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Amberlyst A21, a neutral ion-exchange resin and a solid base, can catalyze the three-component reaction of aldehyde and malononitrile with various active methylene compounds at room temperature to synthesize a range of pharmaceutically important pyran annulated heterocycles. Use of the solid base could generate a highly green protocol by eliminating chromatographic purification that involves hazardous organic solvents, and facilitate easy recovery and reusability of the catalyst. (C) 2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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