反应详情

2-(2,3,4-Trichlorophenoxy)-1-nitrobenzene (1.04 g, 65%) was prepared from 2,3,4-trichlorophenol (0.98 g, 5.0 mmol) and 1-fluoro-2-nitrobenzene (0.71 g, 5.0 mmol) following the general procedure A. This was reduced to 2-(2,3,4-trichlorophenoxy)aniline (0.42 g, 60%, 2.5 mmol scale) following general procedure B. N-[2-(2,3,4-Trichlorophenoxy)phenyl]-N′-(thiazol-2-yl)urea (343 mg, 55%) was prepared from 2-(2,3,4-trichlorophenoxy)aniline (420 mg, 1.5 mmol) and 2-aminothiazole (150 mg, 1.5 mmol) following the general procedure D.