反应详情

温度

65 °C

Methyl 2-[p-(5-acetamido-4-fluoro-2-nitroanilino) -phenoxy]propionate (8.2 g, 0.021 mol) is added to a mixture of iron dust (3.51 g, 0.063 mol) in a 5% acetic acid solution at 65° C. The reaction mixture is stirred at 65° C. for 2.5 hours, treated with additional iron dust (0.5 g), stirred at 65° C. for 30 minutes, cooled to room temperature and filtered through diatomaceous earth. The resultant filtrate is poured into water and extracted with ethyl acetate. The organic extracts are combined, washed sequentially with saturated sodium hydrogen carbonate solution and water, dried over anhydrous sodium sulfate and concentrated in vacuo to give the title product as a brown-black solid.

1. stirringstirred at 65° C. for 30 minutes
2. temperaturecooled to room temperature
3. filtrationfiltered through diatomaceous earth
4. additionThe resultant filtrate is poured into water
5. extractionextracted with ethyl acetate
6. washwashed sequentially with saturated sodium hydrogen carbonate solution and water
7. dry with materialdried over anhydrous sodium sulfate
8. concentrationconcentrated in vacuo