Journal
E-JOURNAL OF CHEMISTRY
Volume 8, Issue 1, Pages 293-299Publisher
HINDAWI LTD
DOI: 10.1155/2011/367613
Keywords
Tetrahydrobenzo[b]pyran; Dimedone; Aromatic aldehyde; Malononitrile; Sulfonic acid functionalized silica
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Funding
- Research Council of Alzahra University
- University of Tehran
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Tetrahydrobenzo[b]pyran derivatives were efficiently synthesized by the reaction of appropriated aromatic aldehydes, malononitrile and dimedone in the presence of SiO2-Pr-SO3H as a nanoporous and recoverable solid acid catalyst, in good to excellent yields. Single crystal x-ray analysis conclusively confirmed the structure of the 2-amino-3-cyano-7,7-dimethyl-4(4-methylphenyl)-5-oxo-4H-5,6,7,8-tetrahydro-benzopyran.
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