ChemInform Abstract: New Heterocyclic System — Benzimidazo[1,2-c]pyridazino[4,3-e]-1,2,3-triazine.
Abstract
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ChemInform Abstract
Reaction of the 6-aminopyridazine (I) with sodium nitrite gives the corresponding diazonium salt which on heating undergoes intramolecular diazo coupling to give the title triazine (II).