Table of Contents
Journal of Catalysts
Volume 2014, Article ID 984730, 6 pages
Research Article

Nanosphere of Semicrystalline Polyaniline Powder: An Effective, Versatile, and Reusable Catalyst for Hantzsch Reaction

Polymers & Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India

Received 31 May 2014; Accepted 22 August 2014; Published 15 September 2014

Academic Editor: Vijay Bokade

Copyright © 2014 Ravi Bolagam 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.


Polyaniline salt containing 1-hydroxyethane-1,1-diphosphonic acid with nanosphere morphology in semicrystalline powder form was successfully synthesized by interfacial polymerization pathway and demonstrated as polymer based acid catalyzed in the synthesis of 1,4-dihydropyridines and polyhydroquinoline derivatives. This catalyst promotes the reaction under solvent free condition in excellent yield in 10 min with recyclability. The advantages of this methodology are the easy synthesis of polymer containing acid group catalyst in powder form having easily handlable, efficient, versatile, and reusable nature.