反应详情

温度

0 °C

474 mg of sodium hydride (55% in paraffin oil) is introduced into 20 ml of dimethylformamide under nitrogen at 0° C., and 1.29 g of trimethylsulfonium iodide is added. After 30 minutes at this temperature, 930 mg of ketone 46 is added in drops to 4 ml of dimethylformamide. It is stirred for 1 more hour at 0° C., then quenched with sodium chloride solution, extracted with ethyl acetate, dried on sodium sulfate and concentrated by evaporation. After chromatography on silica gel with ethyl acetate/hexane, 447 mg of title compound 47 is obtained as a colorless oil.

1. customquenched with sodium chloride solution
2. extractionextracted with ethyl acetate
3. customdried on sodium sulfate
4. concentrationconcentrated by evaporation