Metal‐Mediated CH Bond Activation in a Carbon‐Substituted Hemiporphyrazine

Abstract

The expanded phthalocyanine dicarbahemiporphyrazine forms complexes in which the arene CH groups are in close proximity to the metal center. In the case of the copper adduct, one of the two CH bonds is attacked by a solvent pyridine molecule, thereby forming a CN bond (see picture; C gray, N blue, H light green). This reaction may proceed by oxidative nucleophilic substitution of hydrogen.