N-confused Pyriporphyrin
N-Confusion of a pyridine ring in pyriporphyrin done by R. Myśliborski gave 6,11,16,21-Tetraaryl-3-aza-m-benziporphyrin a.k.a. N-confused Pyriporphyrin. Also 24-thia analogue was obtained and their properties an reactivity was investigated producing, among others, 6-hydroxy-3-aza-m-benziphlorin and iron complexes.
Further reading
Myśliborski, R.; Latos-Grażyński, L. Carbaporphyrinoids Containing A Pyridine Moiety:3-Aza-meta-benziporphyrin and 3-Aza-24-thia-meta-benziporphyrin. Eur. J. Org. Chem. 2005, 5039.
Myśliborski, R.; Rachlewicz, K.; Latos-Grażyński, L. Iron Complexes of N-Confused Pyriporphyrin - NMR Studies. Inorg. Chem. 2006, 45, 7828.
Myśliborski, R., Rachlewicz K., Latos-Grażyński, L. Low-spin organoiron(III) N-confused pyriporphyrin. J. Porphyrins Phtalocyanines 2007, 11, 172.