Table of Contents
ISRN Organic Chemistry
Volume 2012, Article ID 342738, 7 pages
Research Article

“On-Water” Catalyst-Free Ecofriendly Synthesis of the Hantzsch Dihydropyridines

1Department of Chemistry, Taki Government College, North 24 Pgs 743 429, India
2Department of Chemistry, Surendranath Evening College, Kolkata 700 009, India
3Department of Chemistry, Jadavpur University, Kolkata 700 032, India

Received 5 April 2012; Accepted 13 May 2012

Academic Editors: G. Giambastiani, G. Kirsch, and I. Tellitu

Copyright © 2012 Amit Pramanik et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An eco-friendly “on-water” protocol for efficient catalyst-free synthesis of the Hantzsch dihydropyridines from aryl, heteroaryl, alkyl, and vinylogous aldehydes has been developed with minimum auxiliary substances, toxic reagents, organic solvents, and disposal problems.