反应详情

To 3-(p-aminophenyl)-5-(4-pyridyl)-1,2,4-triazole (1 g.) is added acetic anhydride (20 ml.) and the resulting suspension is heated 18 hours on a steam bath. The excess acetic anhydride is removed under reduced pressure and water (25 ml.) is added to the residue. After stirring 0.5 hour, the solid is filtered and recrystallized to yield 3-(p-acetylaminophenyl)-5-(4-pyridyl)-1,2,4-triazole.

1. temperaturethe resulting suspension is heated 18 hours on a steam bath
2. customThe excess acetic anhydride is removed under reduced pressure and water (25 ml.)
3. additionis added to the residue
4. filtrationthe solid is filtered
5. customrecrystallized