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Issue 35, 2011
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Aryl–O reductive elimination from reaction of well-defined aryl–CuIII species with phenolates: the importance of ligand reactivity

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Abstract

Well-defined aryl–CuIII species undergo rapid reductive elimination upon reaction with phenolates (PhO), to form aryl–OPh cross-coupling products. Kinetic studies show that the reaction follows a different mechanistic pathway compared to the reaction with phenols. The pH active cyclized pincer-like ligand undergoes an initial amine deprotonation that triggers a faster reactivity at room temperature. A mechanistic proposal for the enhanced reactivity and the role of EPR-detected CuII species will be discussed in detail.

Graphical abstract: Aryl–O reductive elimination from reaction of well-defined aryl–Cuiii species with phenolates: the importance of ligand reactivity

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Publication details

The article was received on 14 Mar 2011, accepted on 12 Apr 2011 and first published on 04 Jul 2011


Article type: Paper
DOI: 10.1039/C1DT10428D
Citation: Dalton Trans., 2011,40, 8796-8799
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    Aryl–O reductive elimination from reaction of well-defined aryl–CuIII species with phenolates: the importance of ligand reactivity

    A. Casitas, N. Ioannidis, G. Mitrikas, M. Costas and X. Ribas, Dalton Trans., 2011, 40, 8796
    DOI: 10.1039/C1DT10428D

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