反应详情

To a stirred suspension of 5-nitro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (10.2 g, 33 mmol) in methanol (250 mL) powdered sodium hydroxide (2 g, 50 mmol) was added. After stirring at room temperature for 30′ more powdered sodium hydroxide (2 g, 50 mmol) and dichloromethane (50 mL) were added and stirring was prolonged for additional 30′. After concentration, a solution of 2N HCl (50 mL) and water (200 mL) was added and the obtained mixture was filtered. The yellow cake was washed with water and dried to give 5-nitro-1H-pyrrolo[2,3-b]pyridine (4.6 g, 28.2 mmol, 85% yield).

1. additionwas added
2. additionwere added
3. concentrationAfter concentration
4. additiona solution of 2N HCl (50 mL) and water (200 mL) was added
5. filtrationthe obtained mixture was filtered
6. washThe yellow cake was washed with water
7. customdried