Patent ID: 6323377
Filing Date: 2001-11-27
Classification: C07C

Abstract:
A process for the preparation of 2,5-dichlorophenol which comprises selectively oxidizing 1,4-dichlorobenzene using an oxidizing agent and a peroxo-, hydroperoxo-, superoxo- or alkylperoxo-metal species (oxo-metal species), which oxo-metal species is substantially free of complex ligands, wherein said metal of said oxo-metal species is selected from the group consisting of scandium, yttrium, lanthanum, titanium, zirconium, hafnium, vanadium, selenium, tellurium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, rhenium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver, zinc, aluminum, gallium, indium, tin, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, and uranium or mixtures thereof in the presence of an acid selected from formic or alkanoic acids.