反应详情

24.8 g of 2-(furan-2-yl)acetic acid was dissolved in 590 mL of N,N-dimethylformamide and mixed with 32.6 g (0.236 mol) of potassium carbonate and 6.42 g (19.7 mmol) cesium carbonate successively. The reaction mixture was further mixed with 19 mL (0.24 mol) of iodoethane under cooling with ice and stirred at room temperature for 14 hours. After completion of the reaction, the reaction mixture was diluted with distilled water and extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, dried over anhydrous sodium sulfate and filtered, and the filtrate was concentrated under reduced pressure to give 17.0 g of the desired product as a brown liquid.

1. temperatureunder cooling with ice
2. customAfter completion of the reaction
3. extractionextracted with ethyl acetate
4. washThe organic layer was washed with saturated aqueous sodium chloride
5. dry with materialdried over anhydrous sodium sulfate
6. filtrationfiltered
7. concentrationthe filtrate was concentrated under reduced pressure