title: Hydroxylation versus Halogenation of Aliphatic C-H Bonds by a Dioxygen-Derived Iron-Oxygen Oxidant: Functional Mimicking of Iron Halogenases.
abstract: An iron-oxygen intermediate species generated in situ in the reductive activation of dioxygen by an iron(II)-benzilate complex of a monoanionic facial N3 ligand, promoted the halogenation of aliphatic C-H bonds in the presence of a protic acid and a halide anion. An electrophilic iron(IV)-oxo oxidant with a coordinated halide is proposed as the active oxidant. The halogenation reaction with dioxygen and the iron complex mimics the activity of non-heme iron halogenases.
authors.affiliation: Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-, 700032, India.
authors.forename: Sayanti
authors.initials: S
authors.lastname: Chatterjee
authors.affiliation: Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-, 700032, India. ictkp@iacs.res.in.
authors.forename: Tapan Kanti
authors.initials: TK
authors.lastname: Paine
mesh_terms: D001561:Benzilates / Q000737:chemistry*; D040761:Biomimetic Materials / Q000737:chemistry; D001881:Borates / Q000737:chemistry; D005296:Ferrous Compounds / Q000737:chemistry*; D054879:Halogenation; D006900:Hydroxylation; D016877:Oxidants / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*
chemical_list: D001561:Benzilates; D001881:Borates; D005296:Ferrous Compounds; D016877:Oxidants; D010100:Oxygen
keywords: dioxygen; electrophilic oxidants; halogenation; iron; protic acids