反应详情

2-(2,4-Dichlorophenoxy)-5-fluoro-1-nitrobenzene (1.17 g, 78%) was prepared from 2,4-dichlorophenol (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 2-(2,4-dichlorophenoxy)-5-fluoroaniline (0.68 g, 64%) following the general procedure B. N-[2-(2,4-Dichlorophenoxy)-5-fluorophenyl]-N′-(thiazol-2-yl)urea (150 mg, 76%) was prepared from 2-(2,4-dichlorophenoxy)-5-fluoroaniline (135 mg, 0.5 mmol) and 2-aminothiazole (60 mg, 0.6 mmol) following the general procedure D.