反应详情

温度

45 °C

22 g of 3-aminophenoxyacetic acid methylester are solved in 63 g allyl bromide. Subsequently, 10 g of sodium carbonate are added portionwise and the temperature is raised to 45° C. The reaction mixture is stirred at this temperature for 4.5 hours. The insoluble salt is filtered off and washed with 70 g of ethyl acetate. The combined filtrates are kept at 5° C. for 12 h. After the extraction with water, the organic phase is dried with sodium sulfate and the solvent is removed in vacuum (60° C., 28 mbar). Yield: 24 g (dark oil).

1. filtrationThe insoluble salt is filtered off
2. washwashed with 70 g of ethyl acetate
3. waitThe combined filtrates are kept at 5° C. for 12 h
4. extractionAfter the extraction with water
5. dry with materialthe organic phase is dried with sodium sulfate
6. customthe solvent is removed in vacuum (60° C., 28 mbar)