反应详情

温度

100 °C

2-Fluoro-4-iodopyridine (4.99 g, 22.4 mmol) prepared according to a known method (WO2005/041663) was dissolved in dimethyl sulfoxide (75 mL), and the mixture was stirred at 100° C. after adding sodium cyanide (1.21 g, 24.7 mmol). The reaction mixture was diluted with ethyl acetate, and the organic layer was washed with an aqueous sodium bicarbonate solution and saturated brine. The organic layer was dried over anhydrous magnesium sulfate. The residue obtained upon concentration under reduced pressure was purified by silica gel column chromatography to give 2-cyano-4-iodopyridine (258 mg, 5%).

1. washthe organic layer was washed with an aqueous sodium bicarbonate solution and saturated brine
2. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
3. customThe residue obtained upon concentration under reduced pressure
4. customwas purified by silica gel column chromatography