Process for preparing...

Details Process for preparing... Process for preparing...

C - Chemistry, Metallurgy

07

C

C07C 241/02 (2006.01) C07C 17/20 (2006.01) C07C 25/13 (2006.01) C07C 243/22 (2006.01)

Patent

CA 2679604

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.

La présente invention concerne un procédé destiné à préparer 2,6-dichloro-4-(trifluorométhyl)phénylhydrazine selon la formule (I). Selon ledit procédé, on fait réagir un mélange comprenant 1,3-dichloro-2-fluoro-5-trifluorométhylbenzène et 1,2-dichloro-3-fluoro-5-trifluorométhylbenzène avec une source d'hydrazine choisie parmi l'hydrazine, l'hydrate d'hydrazine ou les sels d'addition d'acide d'hydrazine, éventuellement en présence d'au moins un solvant organique.

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