Effect of Co-Ligands on the H₂O₂ Oxidation of 2-Phenylpropionaldehyde Catalyzed by Non-Heme Iron Catalysts as Biomimics

Török, Patrik and Vincze, Bálint and Kaizer, József (2026) Effect of Co-Ligands on the H₂O₂ Oxidation of 2-Phenylpropionaldehyde Catalyzed by Non-Heme Iron Catalysts as Biomimics. HUNGARIAN JOURNAL OF INDUSTRY AND CHEMISTRY, 54 (1). pp. 43-48. ISSN 0133-0276

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Abstract

In this study, the effect of various co-ligands on the reactivity of iron-based catalytic systems toward the oxidation of 2-phenylpropionaldehyde (PPA) was investigated. The oxidations were carried out in the presence of hydrogen peroxide (H2O2) as the terminal oxidant. The reactivity of the catalytic species was found to strongly depend on the electronic and steric properties of the applied co-ligands. By varying the co-ligand environment, significant changes were observed in both the reaction rate and product distribution, indicating that the coordination sphere around the iron center plays a key role in modulating the catalytic behavior. These findings highlight the importance of ligand effects in tuning the selectivity and efficiency of H2O2-driven oxidation reactions of aldehydes.

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