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Issue 8, 2019
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Ni(I)–Ni(III) cycle in Buchwald–Hartwig amination of aryl bromide mediated by NHC-ligated Ni(I) complexes

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Abstract

Intermediate amide complexes of NHC-ligated monovalent nickel in Buchwald–Hartwig amination of aryl halides were isolated and structurally characterized. The amide complexes reacted with aryl bromide to form a cross-coupling product. Low-temperature observation of the oxidative addition product of the Ni(I) amide complex with aryl bromide indicated the presence of a Ni(III) intermediate. The results showed that a well-defined mononuclear NHC–Ni(I) complex can act as a key intermediate in homogeneous catalysis.

Graphical abstract: Ni(i)–Ni(iii) cycle in Buchwald–Hartwig amination of aryl bromide mediated by NHC-ligated Ni(i) complexes

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Publication details

The article was received on 29 Nov 2018, accepted on 13 Feb 2019 and first published on 13 Feb 2019


Article type: Paper
DOI: 10.1039/C8CY02427H
Citation: Catal. Sci. Technol., 2019,9, 1784-1793

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    Ni(I)–Ni(III) cycle in Buchwald–Hartwig amination of aryl bromide mediated by NHC-ligated Ni(I) complexes

    T. Inatomi, Y. Fukahori, Y. Yamada, R. Ishikawa, S. Kanegawa, Y. Koga and K. Matsubara, Catal. Sci. Technol., 2019, 9, 1784
    DOI: 10.1039/C8CY02427H

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