ChemInform Abstract: Facile Synthesis of New [1,2,4]Triazolo[4,3‐b]pyridazine.

Abstract

Facile Synthesis of New [1,2,4]Triazolo[4,3-b]pyridazine. -A wide range of the title pyridazines are obtained by two facile routes, either cyclocondensation of substituted hydrazino pyridazines (I) with orthoesters or oxidative cyclization of their hydrazone analogs using nitrobenzene as oxidizing agent. Some other new derivatives are synthesized from (I) by sequential treatment with carbon disulfide and alkyl halides. -(ARGHIANI, Z.; SEYEDI, S. M.; BAKAVOLI*, M.; ESHGHI, H.; J. Heterocycl. Chem. 52 (2015) 4, 1099-1107, http://dx.