反应详情

5-Fluoro-2-(2-trifluromethylphenoxy)-1-nitrobenzene (1.17 g, 78%) was prepared from 2-hydroxybenzotrifluoride (0.89 g, 5.5 mmol) and 2,5-difluoro-1-nitrobenzene (0.8 g, 5.0 mmol) following the general procedure A. This compound was reduced to 5-fluoro-2-(2-trifluoromethylphenoxy)-aniline (0.65 g, 62%) following the general procedure B. N-[5-Fluoro-2-(2-trifluoromethylphenoxy)phenyl]-N′-(thiazol-2-yl)urea (146 mg, 74%) was prepared from 2-(2-trifluoromethylphenoxy)-5-fluoroaniline (135 mg, 0.5 mmol) and 2-aminothiazole (60 mg, 0.6 mmol) following the general procedure D.