反应详情

温度

50 °C

To a solution of 160 mg (0.55 mmol) of 2-bromo-N-(5-tert-butyl-isoxazol-3-yl)-2-methyl-propionamide in DMF (3 mL) were added 181 mg (0.71 mmol) of 4-methanesulfonyl-benzenesulfinic acid sodium salt in one portion. Pyridine (48 μL) was added and the reaction was stirred at 50° C. for 18 h. The mixture was acidified with 1M aqueous HCl solution (1 mL) and extracted with diethyl ether (3×3 mL). The combined organic layers were dried over Na2SO4 and the solvent removed under reduced pressure. The crude material was purified by column chromatography (silica, eluent heptanes, 0-20% ethyl acetate) to afford 47 mg of N-(5-tert-butyl-isoxazol-3-yl)-2-(4-methanesulfonyl-benzenesulfonyl)-2-methyl-propionamide.

1. extractionextracted with diethyl ether (3×3 mL)
2. dry with materialThe combined organic layers were dried over Na2SO4
3. customthe solvent removed under reduced pressure
4. customThe crude material was purified by column chromatography (silica, eluent heptanes, 0-20% ethyl acetate)