Process for preparing fluoroanilines

Details Process for preparing fluoroanilines Process for preparing fluoroanilines

C - Chemistry, Metallurgy

07

C

C07C 211/52 (2006.01) C07C 209/36 (2006.01) C07C 211/59 (2006.01) C07C 213/00 (2006.01) C07C 215/74 (2006.01) C07C 217/78 (2006.01) C07C 221/00 (2006.01) C07C 223/06 (2006.01) C07C 225/22 (2006.01) C07C 253/30 (2006.01) C07C 255/58 (2006.01) C07D 213/73 (2006.01)

Patent

CA 2142248

The invention relates to a process for preparing fluoro- anilines of the formula (I) FnArNH2 (I) in which n is 1, 2, 3 or 4, Ar is phenyl, naphthyl or pyridyl, and the remaining substituents on the Ar radical are identi- cal or different and are, independently of each other, hydrogen, halogen, (C1-C4)-alkyl, phenyl, NR2, OR, CN, CHO, or COR, where R is hydrogen or (C1-C6)-alkyl, wherein fluoronitrobenzenes of the formula (II) XmFnArNO2 (II) in which n, Ar and the remaining substituents on the Ar radical have the abovementioned meaning, X is chlorine or bromine and m is 1, 2, 3 or 4, are reacted with hydrogen in the presence of a palladium catalyst, of an amine which is not soluble in water and which also does not form water- soluble hydrohalides, and, where appropriate, of an inert solvent.

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