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New Transmetalation Reagents for the Gold-Catalyzed Visible Light-Enabled C(sp or sp2)-C(sp2) Cross-Coupling with Aryldiazonium Salts in the Absence of a Photosensitizer

Abstract

The scope of the photosensitizer-free visible light-driven gold-catalyzed cross-coupling was evaluated by a wide variety of organoboron and organosilicon species using four equivalents of aryldiazonium salts and (4-CF3-C6H4)3PAuCl in MeOH. In addition, a C(sp or sp2)-C(sp2) cross-coupling of organotrimethylsilanes and aryldiazonium salts was investigated. The reactions can be conducted under very mild reaction conditions, with a reduced amount of aryldiazonium salt (1.2 equiv.) by using a catalytic amount of Ph3PAuNTf2 in MeCN under irradiation with blue LEDs at room temperature.

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Publication details

The article was received on 14 Oct 2018, accepted on 09 Nov 2018 and first published on 10 Nov 2018


Article type: Communication
DOI: 10.1039/C8CC08227H
Citation: Chem. Commun., 2018, Accepted Manuscript
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    New Transmetalation Reagents for the Gold-Catalyzed Visible Light-Enabled C(sp or sp2)-C(sp2) Cross-Coupling with Aryldiazonium Salts in the Absence of a Photosensitizer

    S. Witzel, K. Sekine, M. Rudolph and S. Hashmi, Chem. Commun., 2018, Accepted Manuscript , DOI: 10.1039/C8CC08227H

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