Diazo‐, azo‐ and azidoazoles, and related compounds. 1. Synthesis of naphthoazolo‐<i>as</i>‐triazines from diazoazoles and 2‐naphthol

Abstract

Abstract Azo derivatives prepared by coupling 2‐diazoimidazole, 3(5))diazopyrazole, 3(5)diazo‐ s ‐triazole, 4(5)diazo‐ v ‐triazole and diazotetrazole with β‐naphthol have been cyclized to the corresponding naphthoazolo‐ as ‐triazines, an heterocyclic system related to azasteroids. The structure of the products have been elucidated. A consistent mechanism for the cyclization is proposed.