Synthesis of methyl 7-aryl-6-(2-thenoyl)-4,7-dihydrotetrazolo[1,5-a] pyrimidine-5-carboxylates and their reaction with hydrazine hydrate

Article abstract of DOI:10.1134/S1070428011070189

Fusion of methyl 4-(2-thienyl)-2,4-dioxobutanoate with 1H-tetrazol-5-amine monohydrate and aromatic aldehyde gave methyl 7-aryl-6-(2-thenoyl)-4,7- dihydrotetrazolo[1,5-a]pyrimidine-5-carboxylates which reacted with an equimolar amount of hydrazine hydrate