Patent ID: 6747175
Filing Date: 2004-06-08
Classification: C07C,C07D

Abstract:
A process for the preparation of an aniline compound chlorinated on the ring, and having at least one carbon atom of sp3 hybridization, which is perhalogenated and carries a fluorine atom, said process comprising the step of chlorination of a precursor aniline compound, in a hydrofluoric acid medium capable of exchanging a chlorine atom and a fluorine atom in a benzyl position or on said carbon atom of sp3 hybridization carrying a chalcogen atom, said precursor aniline compound being of the formula: wherein:Z represents a single bond or the chalcogen atom; X1, X2, and X3 represent identical or different halogens, with the further proviso that at least two halogens are other than fluorine; and R1 and R2 are halogens, alkyls, aryls or nitriles.