反应详情

温度

70 °C

To a mixture of 320 mg of 2-(trimethylsilyl)ethyl 3-{[4-(methoxycarbonyl)phenyl]sulfamoyl}benzoate and 5 mL of acetonitrile were added 203 mg of potassium carbonate and 0.119 mL of iodoethane. After stirring at 70° C. for 5 hours, 102 mg of potassium carbonate and 0.059 mL of iodoethane were added thereto, followed by stirring at 70° C. for 10 hours. To the reaction mixture was added water, followed by extraction with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate) to obtain 334 mg of a 2-(trimethylsilyl)ethyl 3-{ethyl[4-(methoxycarbonyl)phenyl]sulfamoyl}benzoate as a colorless oily substance. ESI+: 464

1. stirringby stirring at 70° C. for 10 hours
2. extractionfollowed by extraction with ethyl acetate
3. washThe organic layer was washed with saturated brine
4. dry with materialdried over anhydrous sodium sulfate
5. customThe solvent was evaporated under reduced pressure
6. customthe obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate)