4.8 Article

Metal Ion Effect on the Switch of Mechanism from Direct Oxygen Transfer to Metal Ion-Coupled Electron Transfer in the Sulfoxidation of Thioanisoles by a Non-Heme Iron(IV)-Oxo Complex

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 14, Pages 5236-5239

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja200901n

Keywords

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Funding

  1. KRF/MEST of Korea through CRI
  2. KRF/MEST of Korea through GRL [2010-00353]
  3. KRF/MEST of Korea through WCU [R31-2008-000-10010-0]
  4. Ministry of Education, Culture, Sports, Science, and Technology, Japan [20108010]
  5. Grants-in-Aid for Scientific Research [20108001, 20108010] Funding Source: KAKEN
  6. National Research Foundation of Korea [R31-2011-000-10010-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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The mechanism of sulfoxidation of thioaniosoles by a non-heme iron(IV)-oxo complex is switched from direct oxygen transfer to metal ion-coupled electron transfer by the presence of Sc3+. The switch in the sulfoxidation mechanism is dependent on the one-electron oxidation potentials of thioanisoles. The rate of sulfoxidation is accelerated as much as 10(2)-fold by the addition of Sc3+.

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