Herein, we describe a simple, four-step process for the preparation of 1,2,3-triazino[1,6-
a]quinazolin-13-ones. This method involves ring-opening, quinazoline-forming condensation,
reduction, diazotization accompanied by rapid intramolecular cyclization in the last step afforded the
desired products with structurally complex heterocyclic core in excellent to high yields.
Keywords: N-N bond forming, Heterocyclization, Triazine, Quinazoline, Diazonium, Isatoic anhydride.
Rights & PermissionsPrintExport