[F:1][C:2]1[CH:3]=[C:4]([OH:9])[CH:5]=[CH:6][C:7]=1[NH2:8].[OH-].[K+].[F:12][C:13]([F:17])=[C:14]([F:16])[F:15].C1(O)C=CC=CC=1>O.CN(C)C=O>[F:1][C:2]1[CH:3]=[C:4]([O:9][C:14]([F:16])([F:15])[CH:13]([F:17])[F:12])[CH:5]=[CH:6][C:7]=1[NH2:8]0.70 Gram of 3-fluoro-4-aminophenol, 0.06 g of potassium hydroxide and 10 ml of dimethylformamide were added to a reactor and stirred for 20 minutes at an oil bath temperature of from 60° to 70° C. This solution was then violently stirred at the same temperature for 2 hours under the stream of a tetrafluoroethylene gas in excess of said phenol. The reaction solution was cooled and after adding water, extracted with two 150-ml portions of diethyl ether. The ether layers were combined, washed with water, dried and concentrated to obtain a crude product. This crude product was subjected to chromatography on silica gel to obtain 1.00 g of 2-fluoro-4-(1,1,2,2-tetrafluoroethoxy)aniline.
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