Efficient oxidation of β‑carotene in μ-carbido diiron octapropyltetraazaporphyrin–tBuOOH system

摘要: Abstract The oxidative decomposition of β‑carotene mediated by μ-carbido diiron octapropyltetraazaporphyrin ([FeOPrTAP]2C)–tBuOOH system was investigated in benzene. Interaction between tBuOOH and the binuclear complex resulted generation powerful high-oxidized species those are capable oxidizing employed substrate within limits several minutes. explanation for such reactivity behavior involves existence a mixture reactive intermediates reaction medium: more stable singly oxidized at macrocyclic ligand π-cation radical as well much dication that is contributing to rate. introduction imidazole into coordination sphere initial accelerates destruction because high-oxidizing species, which applied organic peroxide resulting dioxygen release. Catalytic all observed active supported recycling under carotene adding. quantitative characteristics studied systems were obtained possible mechanisms proposed.