Nonheme iron-oxo-catalyzed methane formation from methyl thioethers: scope, mechanism, and relevance for natural systems

A range of nonheme oxo-iron(IV) model systems with tetra- or pentadentate ligands is shown to produce methane from methionine and other thioethers. This model reaction for the natural aerobic production of methane is shown to proceed via two sulfoxidation steps involving the oxo-iron(IV) complexes,...

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Hauptverfasser: Benzing, Kathrin Julia (VerfasserIn) , Comba, Peter (VerfasserIn) , Martin, Bodo (VerfasserIn) , Pokrandt, Bianca (VerfasserIn) , Keppler, Frank (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 19 July 2017
In: Chemistry - a European journal
Year: 2017, Jahrgang: 23, Heft: 43, Pages: 10465-10472
ISSN:1521-3765
DOI:10.1002/chem.201701986
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Verfasserangaben:Kathrin Benzing, Peter Comba, Bodo Martin, Bianca Pokrandt, Frank Keppler
Beschreibung
Zusammenfassung:A range of nonheme oxo-iron(IV) model systems with tetra- or pentadentate ligands is shown to produce methane from methionine and other thioethers. This model reaction for the natural aerobic production of methane is shown to proceed via two sulfoxidation steps involving the oxo-iron(IV) complexes, with a bifurcation in the second step that either produces the sulfone or leads to demethylation with similar probabilities. In the presence of O2, the resulting methyl radicals produce methanol and formate or, in an O2-depleted environment, lead to formation of methane.
Beschreibung:Gesehen am 19.02.2018
Beschreibung:Online Resource
ISSN:1521-3765
DOI:10.1002/chem.201701986