反应详情

温度

75 °C

The mixture of 2-(4-isothiocyanatophenoxy)-3-methylpyridine (136 mg, 0.56 mmol), 2-aminophenol (74 mg, 0.67 mmol), and N,N′-dicyclohexylcarbodiimide (174 mg, 0.84 mmol) in THF (5 mL) was heated at 75° C. for 16 h. The solvent was evaporated and the crude product was chromatographed through a Redi-Sep® pre-packed silica gel column (40 g), eluting with a gradient of 0% to 30% EtOAc in hexane, to provide N-(4-(3-methylpyridin-2-yloxy)phenyl)benzo[d]oxazol-2-amine as white solid. MS (ESI, pos. ion) m/z: 318.1 (M+1).

1. customThe solvent was evaporated
2. customthe crude product was chromatographed through a Redi-Sep® pre-packed silica gel column (40 g)
3. washeluting with a gradient of 0% to 30% EtOAc in hexane