反应详情

温度

80 °C

To a solution of methyl 4-mercapto-2-methyl-5-nitrobenzoate (1.17 g) in N,N-dimethyl-formamide (20 ml) were added potassium carbonate (1.42 g), ethyl 2-bromoisobutyrate, and the mixture was stirred at 80° C. for 4 hours. After the reaction was complete, water and 2N hydrochloric acid were added thereto, and the mixture was extracted with ethyl acetate. The organic layer was dried over sodium sulfate, filtered, concentrated under reduced pressure. The obtained residue was purified by column chromatography to give a crude product of the title compound (3.56 g).

1. extractionthe mixture was extracted with ethyl acetate
2. dry with materialThe organic layer was dried over sodium sulfate
3. filtrationfiltered
4. concentrationconcentrated under reduced pressure
5. customThe obtained residue was purified by column chromatography