反应详情

1-(5-Fluoropyridin-2-yl)ethanol (Method 2; 7.5 g, 53.1 mmol) and triethyl amine (9.3 ml, 66.4 mmol) in anhydrous DCM (50 ml) was added methanesulfonyl chloride (4.5 ml, 58.5 mmol) at 0° C. After adding, the reaction was warmed to room temperature and stirred at room temperature for 2 hours. The solvent was removed. The residue was dissolved in anhydrous DMF (50 ml) and sodium azide (6.9 g, 106 mmol) was added. The reaction stirred at room temperature for 2 hours. Water (50 ml) was added and extracted with ether (2×75 ml).

1. additionAfter adding
2. customThe solvent was removed
3. dissolutionThe residue was dissolved in anhydrous DMF (50 ml)
4. stirringThe reaction stirred at room temperature for 2 hours
5. extractionextracted with ether (2×75 ml)