HCID 11744866, compound → HCID 136364588, compound

Participants

Reaction Conditions

Reaction Steps

To 50 ml of ethanol are added 7.8 g of ethyl α-acetylcrotonate and 4.2 g of 3-amino-1,2,4-triazole, stirred at 50° C. for an hour and then heated under reflux for an hour. The ethanol is evaporated under reduced pressure, and the obtained crystals are recrystallized from ethanol to give 7 g of 6-ethoxycarbonyl-5,7-dimethyl-4,7-dihydro-1,2,4-triazolo[1,5-a]pyrimidine, melting at 155°-157° C.

Provenance & Evidence