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Journal of Chemistry
Volume 2013, Article ID 496837, 8 pages
http://dx.doi.org/10.1155/2013/496837
Research Article

Knoevenagel Condensation of Aldehydes with Ethyl Cyanoacetate in Water Catalyzed by P4VP/Al2O3-SiO2

1Department of Chemistry, Shahreza Branch, Islamic Azad University, Isfahan, Shahreza 311-86145, Iran
2Young Researcher Club, Shahreza Branch, Islamic Azad University, Isfahan, Shahreza 311-86145, Iran

Received 28 June 2012; Revised 9 September 2012; Accepted 25 September 2012

Academic Editor: Radhey Srivastava

Copyright © 2012 Majid Kolahdoozan 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.

Abstract

This paper reports the preparation and characterization of poly(4-vinylpyridine) (P4VP) supported on Al2O3-SiO2 and its application for Knoevenagel condensation reaction of various aldehydes with ethyl cyanoacetate in water as a green solvent. The results illustrate that the sample containing 0.6 molar ratio of Al to Si exhibits the highest yield (98%) in the reaction of benzaldehyde with ethyl cyanoacetate with 100% selectivity to the arylidene derivative.