Journal
CHINESE CHEMICAL LETTERS
Volume 25, Issue 3, Pages 455-458Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2013.12.016
Keywords
Aldehydes; 4H-Chromenes; Amino functionalized silica gel
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A simple, efficient, and environmentally benign method for the synthesis of 4H-chromene derivatives was developed using well ordered and recoverable amino functionalized silica gel as a base catalyst. The 4H-chromene derivatives were obtained in short time and excellent yield (87%-96%) by three component reaction of aldehydes, malononitrile and cyclic 1,3-diketones in water at 70 degrees C. (C) 2013 Rajendra P. Pawar. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
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