Patent ID: 6160170
Filing Date: 2000-12-12
Classification: C07C

Abstract:
Process for the production of mono- and poly-carboxylic aromatic acids, which comprises oxidizing an aromatic compound containing at least one oxidizable substituent group attached directly to the carbon atom of the corresponding aromatic ring with molecular oxygen and/or air in the presence of a catalytic system in homogeneous liquid phase, wherein the catalytic system consists essentially of a combination of:(A) a metal of group VIIIB of the periodic table of elements selected from the group consisting of ruthenium, iridium, platinum and palladium; and/or at least one metal of group VIIA of the periodic table of elements; and/or cerium; in the form of the corresponding organic acid salts soluble in the reaction solvent; and(B) at least one metal of group IVA of the periodic table of elements, in the form of the corresponding organic acid salts soluble in the reaction solvent.