Patent ID: 6362375
Filing Date: 2002-03-26
Classification: B01J,C07C

Abstract:
A method of preparing an aryl ketone represented by the following structural formula: comprising heating an aromatic compound represented by the following structural formula: â€ƒwith a carboxylic acid in the presence of (1) a volatile organic compound which forms an azeotrope with water, and (2) a catalytic amount of a metal triflate, wherein the water of reaction is removed from the reaction mixture, and wherein: R1 is the residue of the carboxylic acid; R2 is a hydrogen, hydroxy, alkyl, alkoxy, aryl, aryloxy or halogen group; R3 is a hydrogen, hydroxy, alkyl, alkoxy, aryl, aryloxy, halogen group or any combination thereof; or R2 and R3 collectively are a divalent chain of atoms forming a fused ring with the benzene ring to which each is attached.