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Journal of Chemistry
Volume 2013, Article ID 268654, 6 pages
http://dx.doi.org/10.1155/2013/268654
Research Article

Acetylation of Phenols, Anilines, and Thiols Using Silica Sulfuric Acid under Solvent-Free Conditions

1Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838683, Iran
2Department of Central Laboratory, Jam Petrochemical Company, Assaluye-Kangan, Bushehr, P.O. Box 75391-415, Iran

Received 1 August 2012; Revised 2 October 2012; Accepted 3 October 2012

Academic Editor: Esteban P. Urriolabeitia

Copyright © 2013 Davood Habibi 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

Silica sulfuric acid was employed as a heterogeneous catalyst for the acetylation of a variety of phenols, amines, and thiols under solvent-free conditions at room temperature. Deactivated substrates also acetylated rapidly, and the method showed the preferential selectivity for acetylation of amino group in the presence of hydroxyl groupinwhich no C-acylation was observed.