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Received December 10, 2011
Accepted March 18, 2012
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Synthesis of 1-benzoylpyrene using silica-supported phosphotungstic heteropoly acid as an efficient and reusable catalyst
School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, P. R. China 1School of Material Science and Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, P. R. China
chenmin3226@sina.com
Korean Journal of Chemical Engineering, October 2012, 29(10), 1388-1392(5), 10.1007/s11814-012-0039-7
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Abstract
A novel one-pot catalytic synthesis of 1-benzoylpyrene through acylation of pyrene with benzoic anhydride catalyzed by several heteropoly acids (HPAs) was investigated. Pure 1-benzoylpyrene was obtained and its structure was identified by GC/MS, FT-IR and 1H NMR spectra. Silica-supported phosphotungstic heteropoly acid (PW/SiO2) was found to be the most active catalyst in the acylation. The yield and the selectivity of 1-benzoylpyrene were up to 62.5% and 100%, respectively. The effects of experimental parameters on the catalytic acylation reaction, and the possibility of reusability of PW/SiO2 catalyst were studied. PW/SiO2 catalyst is easily separable from the reaction mixture and reusable without loss of its activity.
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