反应详情

To a stirred solution of 2,5-difluoro-4-(bromomethyl)benzonitrile (Preparation 22, 530 mg, 2.30 mmol) and 3,4-dichlorophenol (375 mg, 2.30 mmol) in acetone (12 mL) was added potassium carbonate (954 mg, 6.90 mmol). The mixture was stirred at room temperature for 36 hours. The reaction mixture was then poured into water (25 mL) and extracted with EtOAc (3×25 mL). The combined organics were dried over sodium sulphate and evaporated to yield the crude product as a yellow oil, which was purified by silica gel chromatography eluting with 50% heptanes in DCM to afford the title compound as a white solid (153 mg, 22%).

1. extractionextracted with EtOAc (3×25 mL)
2. dry with materialThe combined organics were dried over sodium sulphate
3. customevaporated
4. customto yield the crude product as a yellow oil, which
5. customwas purified by silica gel chromatography
6. washeluting with 50% heptanes in DCM