METHOD FOR PRODUCING BIPHENYL-3,4,4'-TRIALKYL TRICARBOXYLIC ACID AND BIPHENYL-3,4,3'-TRIALKYL TRICARBOXYLIC ACID

摘要

PROBLEM TO BE SOLVED: To provide a method for producing isomers of a biphenyl tricarboxylic acid.;SOLUTION: This method for producing biphenyl-3,4,4'-trialkyl tricarboxylic acid and biphenyl-3,4,3'-trialkyl tricarboxylic acid comprises carrying out coupling reaction of a dialkyl phthalate and an alkyl benzoate in the presence of a palladium catalyst to synthesize a homo-coupling product and a cross- coupling product and isolating the cross-coupling product therefrom.;COPYRIGHT: (C)2002,JPO