Organic Azides in Heterocyclic Synthesis. Part 33. Synthesis of 10‐Aryl‐10H‐naphto[1,8a,8‐fg]indazol‐7‐ones.

Abstract

10-Aryl-10H-naphto[1,8a,8-fg]indazol-7-ones. -The synthesis of the title heterocycles (IV) and (VI) by intramolecular cyclization of isolable or in situ generated hydrazonoethylphenalenones [cf. (III)] is described. -(STADLBAUER*, W.; HOJAS, G.; J. Heterocycl. Chem. 40 (2003) 5, 753-756; Dep. Chem., Karl-Franzens-Univ., A-8010 Graz, Austria; Eng.) -M. Schroeter 11-110