IMPROVED METHOD FOR PRODUCING FLUORINE-CONTAINING AROMATIC RING

摘要

PROBLEM TO BE SOLVED: To produce a fluorine-containing cyclic aromatic compound by a halogen exchange reaction (halex reaction) in high yield using a method which is not too complicate from technical viewpoint. SOLUTION: An aromatic compound having a difluorinated ring or a polyfluorinated ring is produced by exchanging two or more halogen substitution groups of a corresponding weakly activated aromatic compound having a dihalogenated ring or a polyhalogenated ring in the presence of a specific catalyst in one reaction step. COPYRIGHT: (C)2006,JPO&NCIPI