Patent ID: 6087543
Filing Date: 2000-07-11
Classification: C07C

Abstract:
A process for producing fluorinated benzene, comprising:(a) contacting chlorobenzene starting material with a metal fluoride composition of the formula (AgF)(NF.sub.2).sub.x where M is selected from the group consisting of Mn, Fe, Co, Ni, Cu, Zn and mixtures thereof and wherein x is a number between 0 and 1, at a temperature above 175.degree. C. sufficient to remove the chlorine substituent from the starting material and to transfer F from the metal fluoride composition to the starting material, thereby producing a reduced metal fluoride composition comprising a silver component of the formula AgF.sub.1-y where y is a number from 0.01 to 1;(b) oxidizing the reduced metal fluoride composition from (a) in the presence of HF to regenerate the metal fluoride mixture composition of the formula (AgF)(W.sub.2).sub.x ; and(c) recycling regenerated metal fluoride composition of (b) to (a).