Highly Efficient Oxidation of Toluene to Benzoic Acid Catalyzed by N-Hydroxyphthalimide and Oxime in PEG -1000-Based Dicationic Ionic Liquid

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Dimethylglyoxime (DMG) and N-hydroxyphthalimide (NHPI) were used to catalyze oxidation of toluene to benzoic acid with molecular oxygen under normal pressure in PEG 1000 -based functional dicationic acidic ionic liquid (PEG1000 -DAIL). PEG1000 –DAIL enhanced the efficient catalytic ability of NHPI: 89.82% conversion of toluene with 94.63% selectivity for benzoic acid could be obtained at 80°C in 10 h.

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74-79

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June 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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