反应详情

温度

90 °C

To a solution of methyl 3-cyclohexyl-2-[2-(2-methanesulfonyloxyethoxy)-3-nitrophenyl]-1H-indole-6-carboxylate (12.60 g, 24.4 mmol) in N,N-dimethylformamide (190 ml) was added potassium carbonate (5.06 g, 36.6 mmol), and the mixture was stirred at 90° C. for 1.5 hr. The reaction mixture was allowed to iv cool to room temperature, water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was successively washed with water and saturated brine and dried over anhydrous magnesium sulfate. After filtration, the solvent was concentrated under reduced pressure to give methyl 12-cyclohexyl-4-nitro-6,7-dihydro-5-oxa-7a-azadibenzo[a,e]azulene-9-carboxylate (9.96 g, yield 97%).

1. temperaturecool to room temperature
2. extractionthe mixture was extracted with ethyl acetate
3. washThe organic layer was successively washed with water and saturated brine
4. dry with materialdried over anhydrous magnesium sulfate
5. filtrationAfter filtration
6. concentrationthe solvent was concentrated under reduced pressure