Reactions with hydrazonoyl halides 45: Synthesis of some new triazolino [4,3-a]pyrimidines, pyrazolo [3,4-d]pyridazines, isoxazolo[3,4-d]pyridazines, and thieno[2,3-b]pyridines

Article abstract of DOI:10.1080/00397910500330593

Triazolino[4,3-α]pyrimidines pyrazolo[3,4-d]pyridazines and isoxazolo[3,4-d] pyridazines were synthesized from hydrazonoyl halides. Also, 3-aminothieno[2,3-b] pyridines and pyrimidino[4′,5′:4,5]thieno[2,3- b]pyridines were synthesized from cynothioacetamide. Structures of the newly synthesized compounds were established on the basis of elemental analyses and spectral data. Copyright Taylor & Francis LLC.