4-(1,1,2,2-tetrafluoroethoxy)aniline → HCID 19779399, compound

Participants

Reaction Conditions

Reaction Steps

4-Nitro-(1',1',2',2'-tetrafluoroethoxy-benzene was converted to 4-(1',1',2',2'-tetrafluoroethoxy)-aniline using the general procedure illustrated in Preparation 12 of EP 0 398 499. In such Preparation, reduced iron powder (0.18 g) was added to a suspension of 1-(2-fluoro-6-nitro-4-trifluoromethylphenyl)-4-trifluoromethylpyrimidin-6-one (0.6 g) in a mixture of isopropanol (6 ml) and water (0.6 ml). Concentrated hydrochloric acid (1 drop) was added, and the reaction mixture was heated to 100° C. for a period of 5 hours. After cooling to ambient temperature, the reaction mixture was filtered through celite, and the residue washed with ethyl acetate. Evaporation of the filtrate under reduced pressure gave 1-(2-amino-6-fluoro-4-trifluoromethylphenyl)-4-trifluoromethylpyrimidin-6-one.

Provenance & Evidence