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Insights into Cobalta(III/IV/II)‐Electrocatalysis: Oxidation‐Induced Reductive Elimination for Twofold C−H Activation

Meyer, Tjark H. ; Oliveira, João C. A. ; Ghorai, Debasish ; Ackermann, Lutz

Angewandte Chemie (International ed.), 2020-06, Vol.59 (27), p.10955-10960 [Periódico revisado por pares]

Germany: Wiley Subscription Services, Inc

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  • Título:
    Insights into Cobalta(III/IV/II)‐Electrocatalysis: Oxidation‐Induced Reductive Elimination for Twofold C−H Activation
  • Autor: Meyer, Tjark H. ; Oliveira, João C. A. ; Ghorai, Debasish ; Ackermann, Lutz
  • Assuntos: Activation ; Cobalt ; Communication ; Communications ; C−H activation ; Electrochemical analysis ; Electrochemistry ; electrosynthesis ; Intermediates ; mechanism ; Oxidation ; oxidative catalysis ; Reaction mechanisms
  • É parte de: Angewandte Chemie (International ed.), 2020-06, Vol.59 (27), p.10955-10960
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: The merger of cobalt‐catalyzed C−H activation and electrosynthesis provides new avenues for resource‐economical molecular syntheses, unfortunately their reaction mechanisms remain poorly understood. Herein, we report the identification and full characterization of electrochemically generated high‐valent cobalt(III/IV) complexes as crucial intermediates in electrochemical cobalt‐catalyzed C−H oxygenations. Detailed mechanistic studies provided support for an oxidatively‐induced reductive elimination via highly‐reactive cobalt(IV) intermediates. These key insights set the stage for unprecedented cobaltaelectro two‐fold C−H/C−H activation. CoIII/IV: Cyclic voltammetric, kinetic and computational studies allowed the identification of a novel mechanism for cobaltaelectro‐catalysis, which enabled electrooxidative double C−H arylations.
  • Editor: Germany: Wiley Subscription Services, Inc
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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