R. Sridhar, P. Perumal
Feb 28, 2005
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0
Influential Citations
154
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Quality indicators
Journal
Tetrahedron
Abstract
3,4,5-Trifluorobenzeneboronic acid catalysed, ionic liquid mediated facile synthesis of 4-pyrazolyl 1,4-dihydropyridines at room temperature by the cyclocondensation of ethyl 3-aminocrotonate, pyrazole aldehyde and a β-keto ester is reported. The procedure adopted was found to be eco-benign, facile at room temperature and better than the conventional, [bmim]Cl mediated and InCl 3 catalysed, [bmim]Cl mediated 1,4-dihydropyridine syntheses.