4.8 Article

An Efficient Rh/O2 Catalytic System for Oxidative C-H Activation/Annulation: Evidence for Rh(I) to Rh(III) Oxidation by Molecular Oxygen

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 24, Pages 8850-8853

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja404414q

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Funding

  1. Chinese Academy of Sciences
  2. National Natural Science Foundation of China [21222203, 21172226, 21133011]

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A novel and efficient Rh/O-2 catalytic system has been developed and shown to catalyze highly efficient oxidative C-H activation/annulation reactions, producing a broad range of isoquinolinium salts with high turnover numbers (up to 740). Mechanistic studies provided strong evidence of facile oxidation of Rh(I) to Rh(III) by molecular oxygen facilitated by acid.

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