Nonheme iron-oxo-catalyzed methane formation from methyl thioethers

• Verfasst von: Benzing, Kathrin Julia [VerfasserIn]
• Verfasst von: Comba, Peter [VerfasserIn]
• Verfasst von: Martin, Bodo [VerfasserIn]
• Verfasst von: Pokrandt, Bianca [VerfasserIn]
• Verfasst von: Keppler, Frank [VerfasserIn]
• Titel: Nonheme iron-oxo-catalyzed methane formation from methyl thioethers
• Titelzusatz: scope, mechanism, and relevance for natural systems
• Verf.angabe: Kathrin Benzing, Peter Comba, Bodo Martin, Bianca Pokrandt, Frank Keppler
• Umfang: 8 S.
• Fussnoten: Gesehen am 19.02.2018
• Titel Quelle: Enthalten in: Chemistry - a European journal
• Jahr Quelle: 2017
• Band/Heft Quelle: 23(2017), 43, S. 10465-10472
• ISSN Quelle: 1521-3765
• DOI: doi:10.1002/chem.201701986
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1569978891

Abstract

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.