Table of Contents
Journal of Catalysts
Volume 2014 (2014), Article ID 515428, 6 pages
Research Article

Emeraldine Base Form of Polyaniline Nanofibers as New, Economical, Green, and Efficient Catalyst for Synthesis of Z-Aldoximes

Polymers & Functional Materials Division, Indian Institute of Chemical Technology, Hyderabad, Andhra Pradesh 500007, India

Received 13 September 2013; Revised 6 December 2013; Accepted 19 December 2013; Published 6 February 2014

Academic Editor: Kun Qiao

Copyright © 2014 Rajender Boddula and Palaniappan Srinivasan. 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.


A facile, clean, economical, efficient, and green process was developed for the preparation of Z-aldoximes at room temperature under solvent-free condition using emeraldine base form of polyaniline as novel catalyst. In this methodology, PANI base absorbed the by-product of HCl (polluting chemical) from hydroxylamine hydrochloride and converted to polyaniline-hydrochloride salt (PANI-HCl salt). This PANI-HCl salt could be easily recovered and used in new attempts without any purification in many areas such as catalyst, electrical and electronics applications meant for conducting polymers. As far as our knowledge is concerned, emeraldine base as catalyst in organic synthesis for the first time.