反应详情

5-Nitrobenztriazole (10 g) was shaken with Raney nickel (3 spoons) and ethanol (200 ml) under hydrogen at atmospheric pressure until the uptake of hydrogen ceased. The Raney nickel was removed by filtration through Keiselguhr, and the dark ethanolic solution was evaporated to dryness. Crystallization from aqueous ethanol afforded 5-aminobenzotriazole (6 g, 75 percent).

1. customThe Raney nickel was removed by filtration through Keiselguhr
2. customthe dark ethanolic solution was evaporated to dryness
3. customCrystallization from aqueous ethanol