Highly Efficient Oxidation of Toluene to Benzoic Acid Catalyzed by Manganese Dioxide and N-Hydroxyphthalimide

Benzoic acid could be efficiently prepared from aerobic oxidation of toluene using manganese dioxide (MnO 2 ) and N -hydroxyphthalimide (NHPI) as catalysts. The conditions of oxidation, including temperature, amount of catalyst, dioxygen pressure and reaction time, were studied in details. Thus 94.4...

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Veröffentlicht in:	Catalysis letters 2011-04, Vol.141 (4), p.544-548
Hauptverfasser:	Jiang, Jun, Jing, Yuanyuan, Zhang, Yaofa, Zhang, Na, Jiao, Jiemin, Zhu, Weimin, Xue, Huazhen, Zong, Yongli, Yang, Guanyu
Format:	Artikel
Sprache:	eng
Schlagworte:	Benzoic acid Catalysis Catalysts Chemical properties Chemistry Chemistry and Materials Science Exact sciences and technology General and physical chemistry Industrial Chemistry/Chemical Engineering Manganese dioxide Organic acids Organometallic Chemistry Oxidation Oxidation-reduction reaction Physical Chemistry Reaction time Selectivity Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Toluene
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Zusammenfassung:	Benzoic acid could be efficiently prepared from aerobic oxidation of toluene using manganese dioxide (MnO 2 ) and N -hydroxyphthalimide (NHPI) as catalysts. The conditions of oxidation, including temperature, amount of catalyst, dioxygen pressure and reaction time, were studied in details. Thus 94.4% conversion of toluene and 98.4% selectivity of benzoic acid could be obtained at 110 °C under 0.3 MPa for 3 h in the presence of 10 mol% NHPI and 4 mol% MnO 2 . Graphical Abstract
ISSN:	1011-372X 1572-879X
DOI:	10.1007/s10562-010-0507-9