Direct evidence for an iron(IV)-oxo porphyrin π-cation radical as an active oxidant in catalytic oxygenation reactions

Abstract

A high-valent iron(iv)-oxo porphyrin π-cation radical is an active oxidant in the catalytic oxygenation of organic substrates by an iron(iii) porphyrin complex and peracids, whereas an iron(iii)-oxidant porphyrin adduct is a sluggish oxidant in iron porphyrin model reactions. © The Royal Society of Chemistry.