Aerobic oxidative condensation for the synthesis of phenoxazinone and phenazine derivatives catalyzed by an iron-porphyrin complex with a pendant imidazole ligand

Key Points

• To develop an iron-porphyrin catalyst for the oxidative condensation of specific amines to synthesize phenoxazinone and phenazine derivatives.
• Developed a biomimetic iron-porphyrin catalyst with an imidazole axial ligand.
• Utilized air as an oxidant for the reaction.
• Used o-aminophenols and o-phenylenediamines as substrates for synthesis.
• Successfully synthesized phenoxazinone and phenazine derivatives.
• Demonstrated the effectiveness of air as an oxidant in the process.