反应详情

温度

40 °C

To a solution of 5-nitropyridin-2-ol (0.06 mol, 8.6 g) in 400 ml of water at 40°, 3.7 ml of Br2 was added. The mixture was stirred at 40° C. for 2.5 h and then it was stirred at room temperature overnight. The solid formed was filtered off, washed with water and dried under vacuum overnight affording 12.5 g (93% of yield) of the expected product.

1. stirringit was stirred at room temperature overnight
2. customThe solid formed
3. filtrationwas filtered off
4. washwashed with water
5. customdried under vacuum overnight
6. customaffording