反应详情

温度

60 °C

2-Chloro-7-fluoro-5-methyl-6-phenyl-1,3-benzoxazole-4-cabonitrile (I-130) (0.20 g, 0.70 mmol) was dissolved in dichloromethane (7 ml), then diisopropylethylamine (0.15 ml, 0.88 mmol), dimethylamine (2.0 M tetrahydrofuran solution, 0.50 ml, 1.00 mmol) were added. After stirring in a sealed tube at an external temperature of about 60° C. for 3 hours, this was diluted with dichloromethane. After washing with water and drying over anhydrous sodium sulfate, the solvent was evaporated away under reduced pressure, and the resulting residue was purified by silica gel column chromatography (dichloromethane) to obtain a colorless solid (0.18 g, 87%).

1. washAfter washing with water
2. dry with materialdrying over anhydrous sodium sulfate
3. customthe solvent was evaporated away under reduced pressure
4. customthe resulting residue was purified by silica gel column chromatography (dichloromethane)