NOVEL FLUOROBENZOPHENONES AND NOVEL FLUOROPHENYL ESTERS OF FLUOROBENZOIC ACID AND PROCESS FOR THEIR PREPARATION

摘要

THE INVENTION CONCERNS NEW FLUOROBENZOPHENONES AS WELL AS NEW FLUOROPHENYL ESTERS OF FLUOROBENZOIC ACID. According to the invention, two types of new fluoro-benzophenones represented by the general formula A (CF). DRAWING IN BOPI) BR/ OR X IS F OR C1, ARE SYNTHESIZED FROM 1,2-DIFLUOROBENZENE AND 4,4-DIFLUOROBENZOPHENONE, RESPECTIVELY; FLUOROPHENYL FLUOROBENZOATES REPRESENTED BY THE GENERAL FORMULA B BR/ (CF DRAWING IN BOPI) BR/ OR X IS F OR C1, ARE OBTAINED BY OXIDATION OF FLUOROBENZOPHENONES RESPECTIVELY IN AN ORGANIC SOLVENT USING THE TRIFLUOROACETIC ACID AND AN AQUEOUS SOLUTION OF HYDROGEN PEROXIDE; BY THE HYDROLYSIS OF EACH FLUOROBENZOATES B, 3,4-DIFLUOROPHENOL OR 3-CHLORO-4-FLUOROPHENOL CAN BE EASILY OBTAINED. THE INVENTION APPLIES IN PARTICULAR TO THE PREPARATION OF MEDICAMENTS, CHEMICALS FOR AGRICULTURE AND OTHER FUNCTIONAL MATERIALS. / P