反应详情

A solution of 5 g (25.2 mmol) of methyl 4-chlorocarbonyl benzoate in 20 ml of dioxane was added to 30 ml of 50% aqueous dimethylamine solution under cooling with ice. After stirring for 30 minutes, 50 ml of 1 N aqueous sodium hydroxide solution was added to the resultant mixture, and they were stirred at room temperature for 2 days. The reaction liquid was washed with ethyl acetate and made acidic with hydrochloric acid. After the extraction with ethyl acetate, the extract was washed with saturated Aqueous NaCl solution and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was washed with hexane and dried to obtain the title compound.

1. temperatureunder cooling with ice
2. stirringwere stirred at room temperature for 2 days
3. customThe reaction liquid
4. washwas washed with ethyl acetate
5. extractionAfter the extraction with ethyl acetate
6. washthe extract was washed with saturated Aqueous NaCl solution
7. dry with materialdried over anhydrous magnesium sulfate
8. customThe solvent was evaporated
9. washthe residue was washed with hexane
10. customdried