| abstract |
A method for preparing a carboxylic acid is provided. The method includes contacting an olefinic compound or a vicinal dihydroxy compound with oxygen in the presence of a protic organic solvent, an inorganic oxide catalyst and a peroxidant such as hydrogen peroxide or a peralkanoic acid. The inorganic oxide catalyst includes an oxide of tungsten, molybdenum, niobium, vanadium, tantalum, titanium, or yttrium. |