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IrIII/NiII-Metallaphotoredox catalysis: the oxidation state modulation mechanism versus the radical mechanism

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Abstract

A novel oxidation state modulation mechanism, merging oxidative quenching (IrIII–*IrIII–IrIV–IrIII) and nickel catalytic (NiII–NiI–NiIII–NiI–NiII) cycles, has been illuminated unambiguously for photoredox-mediated iridium(III)/nickel(II) dual catalyzed C–O cross-coupling of aryl bromide and alcohol. Quinuclidine participates in a crucial proton-coupled electron transfer process to accelerate the reaction and regulate C–O coupling selectivity.

Graphical abstract: IrIII/NiII-Metallaphotoredox catalysis: the oxidation state modulation mechanism versus the radical mechanism

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Publication details

The article was received on 03 May 2018, accepted on 08 May 2018 and first published on 09 May 2018


Article type: Communication
DOI: 10.1039/C8CC03550D
Citation: Chem. Commun., 2018, Advance Article
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    IrIII/NiII-Metallaphotoredox catalysis: the oxidation state modulation mechanism versus the radical mechanism

    B. Zhu, L. Yan, Y. Geng, H. Ren, W. Guan and Z. Su, Chem. Commun., 2018, Advance Article , DOI: 10.1039/C8CC03550D

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