Alkene epoxidation by iodosylbenzene catalysed by porphyrin and non-porphyrin iron complexes: the importance of the porphyrin ligand in cytochrome P-450 and Heme model reactions

Abstract

FeCl₃ and Fe(acac)₃(acac = acetylacetonato) like Fe(TPP)(Cl)(TPP = tetraphenylporphyrinato), catalyse the epoxidation of styrene and stilbenes and the oxidation of non-1-ene by PhIO; however, several characteristics of the oxidations catalysed by non-porphyrin iron complexes, such as stereospecificity and sensitivity to dioxygen, are very different from those of the corresponding reactions catalysed by Fe(TPP)(Cl).