反应详情

温度

100 °C

A mixture of ethyl 4-bromobutyrate (2.0 g, 10.25 mmol), dibenzylamine (2.02 g, 10.25 mmol) and potassium carbonate (2.83 g, 20.5 mmol) in N,N-dimethylformamide (20 mL) was heated with stirring at 100° C. overnight. The resulting mixture was diluted with water (80 mL) and then extracted with ethyl acetate (50 mL×3). The combined organic layers were washed with brine (80 mL×2), and then dried over Na2SO4 and then concentrated in vacuo. The residue was purified by flash chromatography on silica gel (EtOAc:PE=1:4) to afford ethyl 4-(dibenzylamino)butanoate as a white solid (2.0 g, yield: 64%).

1. temperaturewas heated
2. extractionextracted with ethyl acetate (50 mL×3)
3. washThe combined organic layers were washed with brine (80 mL×2)
4. dry with materialdried over Na2SO4
5. concentrationconcentrated in vacuo
6. customThe residue was purified by flash chromatography on silica gel (EtOAc:PE=1:4)