Synthesis and properties of benzooxazinophenooxazine and the related compounds

1,4-Benzooxazino[2,3-b]phenoxazines (N-H and N-Me derivatives) and their sulphur analogues were synthesized. These electron-rich compounds afforded the charge transfer complexes or the radical ion salts when mixed with suitable electron acceptors or when electrolyzed in the presence of suitable counter ions: PF 6 - , I 3 - , ClO 4 - , respectively. The conductivity of these complexes and salts were in the range between 10 -3 - 10 -8 Scm -1 .