1-(3-Pyridyl)-3-(dimethylamino)-2-propen-1-one → 2-Ethyl-7-(3-pyridyl)[1,2,4]triazolo[1,5-a]pyrimidine

Participants

Reaction Steps

A mixture of 1.12 g of 3-amino-5-ethyl-1,2,4-triazole and 1.76 g of 3-dimethylamino-1-(3-pyridyl)-2-propene-1-one in 25 ml of glacial acetic acid was refluxed for six hours and the procedure of Example 1 was continued to give 1.51 g of the desired product as colorless needles, mp 147°-149° C.

Provenance & Evidence