Process for preparing trifluoromethylanilines

Details Process for preparing trifluoromethylanilines Process for preparing trifluoromethylanilines

C - Chemistry, Metallurgy

07

C

C07C 211/52 (2006.01) C07B 39/00 (2006.01) C07C 209/62 (2006.01) C07C 209/74 (2006.01) C07C 213/00 (2006.01) C07C 215/76 (2006.01) C07C 217/84 (2006.01) C07C 227/20 (2006.01) C07C 229/54 (2006.01) C07C 253/30 (2006.01) C07C 255/58 (2006.01) C07C 319/20 (2006.01) C07C 323/36 (2006.01)

Patent

CA 2130504

Abstract of the disclosure A process for preparing trifluoromethylanilines of the formula (I), Image (I) in which R1 and R2, independently of each other, are hydrogen, halogen, (C1-C4)alkyl, hydroxyl, alkoxy, alkylthio, carboxyl, or a nitro or cyano group, by reacting compounds of the formula (II) Image (II) in which X1, X2 and X3 are in each case, identically or differently, halogen atoms, a is 0 or 1, Y is fluorine, chlorine or bromine, and R1 and R2 have the defined meaning, with anhydrous hydrofluoric acid, and converting the resulting aniline hydrofluorides with a base into the free amines.

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