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Issue
Korean Journal of Chemical Engineering,
Vol.29, No.10, 1388-1392, 2012
Synthesis of 1-benzoylpyrene using silica-supported phosphotungstic heteropoly acid as an efficient and reusable catalyst
He M, Pan A, Xie J, Li H, Yuan X, Cheng X, Chen M
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.
Keywords: 1-Benzoylpyrene; Friedel-Crafts Acylation; Pyrene; Heteropoly Acids; Catalysis
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