反应详情

温度

100 °C

To a solution of methyl 4-bromo-3-(bromomethyl)benzoate (6.5 g; 21 mmol; 1 eq.) in AcOH (32.5 mL) was added sodium acetate (3.46 g; 42 mmol; 2 eq.) and the reaction mixture was stirred at 100° C. for 12 hours. After concentration in vacuo, the residue was partitioned between Ethyl acetate and water. The organic layer was washed with 5% aq. NaHCO3 then brine, dried over MgSO4 and concentrated in vacuo. Purification by column chromatography (c-hexane/ethyl acetate, 5/1) afforded the title compound (4.78 g, 79%) as a white solid.

1. concentrationAfter concentration in vacuo
2. customthe residue was partitioned between Ethyl acetate and water
3. washThe organic layer was washed with 5% aq. NaHCO3
4. dry with materialbrine, dried over MgSO4
5. concentrationconcentrated in vacuo
6. customPurification by column chromatography (c-hexane/ethyl acetate, 5/1)