反应详情

温度

0 °C

To a solution of 2-(benzyloxy)-1-(6-bromo-2-chloropyridin-3-yl)ethanol (1.54 g, 4.49 mmol) in DCM (10 mL) at 0° C. was added diethylaminosulfur trifluoride (0.594 ml, 4.49 mmol). The resulting mixture was stirred at 0° C. for 30 min, then warmed to RT and stirred for 1 h. The mixture was concentrated in vacuo and the resulting residue purified using column chromatography (eluted with 0-20% ethyl acetate/hexane) to provide 3-(2-(benzyloxy)-1-fluoroethyl)-6-bromo-2-chloropyridine (490 mg, yield: 32%)

1. temperaturewarmed to RT
2. stirringstirred for 1 h
3. concentrationThe mixture was concentrated in vacuo
4. customthe resulting residue purified
5. washcolumn chromatography (eluted with 0-20% ethyl acetate/hexane)