反应详情

温度

-15 °C

One gram (1.00 g) of N-[2-(3,4-dimethoxyphenyl)ethyl]-3-hydroxy-2-(4-chlorophenyl) acrylamide (2.66 mmol), 130 mg (3.25 mmol) of 60% sodium hydride and 10 ml of anhydrous N,N-dimethylformamide were mixed and 0.46 g of bromofluoromethane was added thereto at −15° C. The mixture was stirred at −15° C. for 30 minutes and then stirred at 0° C. for 1 hour. The reaction mixture was added to water and extracted with ethyl acetate. The organic layer was washed with 5% hydrochloric acid and saturated brine subsequently, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel preparative thin layer chromatography (eluent, hexane:ethyl acetate=1:1) to give 100 mg of N-[2-(3,4-dimethoxyphenyl)ethyl]-3-fluoromethoxy-2-(4-chlorophenyl)acrylamide (the present compound 1016).

1. customat −15° C
2. stirringstirred at 0° C. for 1 hour
3. extractionextracted with ethyl acetate
4. washThe organic layer was washed with 5% hydrochloric acid and saturated brine subsequently
5. dry with materialdried over anhydrous magnesium sulfate
6. concentrationconcentrated under reduced pressure