[CH3:1][O:2][C:3](=[O:13])[CH2:4][O:5][C:6]1[CH:11]=[CH:10][CH:9]=[C:8]([NH2:12])[CH:7]=1.C(=O)([O-])[O-].[Na+].[Na+]>C(Br)C=C>[CH3:1][O:2][C:3](=[O:13])[CH2:4][O:5][C:6]1[CH:11]=[CH:10][CH:9]=[C:8]([N:12]([CH2:10][CH:9]=[CH2:8])[CH2:11][CH:6]=[CH2:7])[CH:7]=122 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).
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