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

• Verfasst von: Witzel, Sina [VerfasserIn]
• Verfasst von: Sekine, Kohei [VerfasserIn]
• Verfasst von: Rudolph, Matthias [VerfasserIn]
• Verfasst von: Hashmi, A. Stephen K. [VerfasserIn]
• Titel: 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
• Verf.angabe: Sina Witzel, Kohei Sekine, Matthias Rudolph and A. Stephen K. Hashmi
• E-Jahr: 2018
• Jahr: 10 Nov 2018
• Umfang: 3 S.
• Fussnoten: Im Titel ist die Ziffer 2 jeweils hochgestellt ; Gesehen am 11.12.2018
• Titel Quelle: Enthalten in: Chemical communications
• Ort Quelle: Cambridge : Soc., 1965
• Jahr Quelle: 2018
• Band/Heft Quelle: 54(2018), 98, Seite 13802-13804
• ISSN Quelle: 1364-548X
• DOI: doi:10.1039/C8CC08227H
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 158505206X

Abstract

The scope of 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.