| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a desired aromatic or heteroaromatic carboxylic acid in higheryield and suppressing byproduct amount very low under easy process conditions. SOLUTION: This method comprises catalytically oxidizing an alkylaromatic compound to obtain the corresponding aromatic or heteroaromatic carboxylic acid. The method also comprises oxidizing the alkylaromatic compound with ozone to obtain the corresponding carboxylic acid in a solvent at a temperature of -70°C to 110°C in the presence of a transition metal catalyst and, if necessary, an acid and, then, isolating the obtained carboxylic acid, wherein the solvent is selected from a group consisting of 1-6C mono- or dicarboxylic acids, esters, water, halogenated hydrocarbons, acetonitrile, 1-6C alcohols, silicones, silicone oils, chemically inactive high-boiling solvents and mixtures of two or more of these solvents. COPYRIGHT: (C)2004,JPO
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