PROCESS FOR PREPARING 2,6-DICHLORO-4-(TRIFLUOROMETHYL)PHENYLHYDRAZINE USING MIXTURES OF DICHLORO-FLUORO-TRIFLUOROMETHYLBENZENES

摘要

This invention relates to a process for preparing 2,6-dichloro-4-(trifluoromethyl)phenylhydrazine of the formula (I) wherein a mixture comprising 1,3-dichloro-2-fluoro-5-trifluoromethylbenzene and 1,2-dichloro-3-fluoro-5-trifluoromethylbenzene is reacted with a hydrazine source selected from hydrazine, hydrazine hydrate or acid addition salts of hydrazine, optionally in the presence of at least one organic solvent.;COPYRIGHT KIPO & WIPO 2010