Synthesis of some new mesoionic heterocycles

Abstract

The synthesis of various substituted 1‐hydroxy‐2‐chloroacetyl‐6‐thia‐10b‐aza‐2a‐azoniaaceanthrylene hydroxide inner salt, 1‐hydroxy‐6‐thia‐10b‐aza‐2a‐azoniaaceanthrylene hydroxide inner salt, 1‐hydroxy‐2‐piperidinoacetyl‐6‐thia‐10b‐aza‐2a‐azoniaaceanthrylene hydroxide inner salt is described. The ir is also included.