反应详情

A suspension of 3,5-dipyrazinyl-1,2,4-triazole (0.5 grams) in 20 ml. of acetic anhydride is heated on a steam bath for 17 hours. The resulting solution is filtered and concentrated to a solid. After recrystallization from benzene-hexane, 250 mg. of 1-acetyl-3,5-dipyrazinyl-1,2,4-triazole is obtained, m.p. 128°-130° C.

1. filtrationThe resulting solution is filtered
2. concentrationconcentrated to a solid
3. customAfter recrystallization from benzene-hexane, 250 mg