反应详情

To a stirred solution of 3,3-dimethyl-6-nitroindoline (450 mg) in CH2Cl2 (15 mL) and Et3N (0.6 mL) at −10° C. was added acetyl chloride (180 μL, 2.5 mmol). The mixture was stirred at rt overnight and quenched by addition of sat. aq. NaHCO3, and extracted with EtOAc (30 mL×3). The combined organic layers were washed with brine, dried (MgSO4) and concentrated. The residue was purified by column to give a light yellow solid (390 mg, 71% for two steps).

1. customquenched by addition of sat. aq. NaHCO3
2. extractionextracted with EtOAc (30 mL×3)
3. washThe combined organic layers were washed with brine
4. dry with materialdried (MgSO4)
5. concentrationconcentrated
6. customThe residue was purified by column
7. customto give a light yellow solid (390 mg, 71% for two steps)