反应详情

To a suspension of 5-(4-bromo-2-formyl-N-propylanilino)pentanoic acid (8.00 g) and potassium carbonate (3.88 g) in DMF (25 ml) was added dropwise a solution of iodomethane (4.66 g) in DMF (5 ml) under a nitrogen atmosphere. The mixture was stirred overnight under a nitrogen atmosphere. Then, water was added and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated saline and dried over magnesium sulfate. The solvent was distilled off under reduced pressure to obtain brown oil of methyl 5-(4-bromo-2-formyl-N-propylanilino)pentanoate (7.89 g).

1. extractionthe mixture was extracted with ethyl acetate
2. washThe organic layer was washed with saturated saline
3. dry with materialdried over magnesium sulfate
4. distillationThe solvent was distilled off under reduced pressure