Metal Schiff-Base Complex Catalyzed Oxidation of p-Xylene and Methyl 4-Methylbenzoate to Carboxylic Acids |
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| Authors: | Shivappa B Halligudi Biju M Devassy NK Kala Raj Manju P Degaonkar and Sarada Gopinathan |
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| Institution: | (1) Catalysis Division, National Chemical Laboratory, Pune, 411 008, India |
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| Abstract: | Oxidation of p-xylene and methyl 4-methylbenzoate were catalyzed by transition metal Schiff-base complexes having the general formula LMCl1–2 (where M = manganese or ruthenium and L = salen, salicylaldehydeethylenediimine, saloph, salicylaldehyde-o-phenylenediimine and EDTA, ethylenediaminetetraacetate) at 150°C and 500 psig air and gave p-toluic acid (> 85 %) and monomethyl terephthalate (> 70%) as the major oxidation products, respectively. |
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| Keywords: | Oxidation p-xylene methyl 4-methylbenzoate p-toluic acid |
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