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Verfasst von:Hu, Long [VerfasserIn]   i
 Dietl, Martin C. [VerfasserIn]   i
 Han, Chunyu [VerfasserIn]   i
 Rudolph, Matthias [VerfasserIn]   i
 Rominger, Frank [VerfasserIn]   i
 Hashmi, A. Stephen K. [VerfasserIn]   i
Titel:Au-Ag bimetallic catalysis
Titelzusatz:3-alkynyl benzofurans from phenols via tandem C-H alkynylation/oxy-alkynylation
Verf.angabe:Long Hu, Martin C. Dietl, Chunyu Han, Matthias Rudolph, Frank Rominger, and A. Stephen K. Hashmi
E-Jahr:2021
Jahr:22 February 2021
Umfang:6 S.
Fussnoten:Gesehen am 21.04.2021
Titel Quelle:Enthalten in: Angewandte Chemie. International edition
Ort Quelle:Weinheim : Wiley-VCH, 1998
Jahr Quelle:2021
Band/Heft Quelle:60(2021), 19 vom: Mai, Seite 10637-10642
ISSN Quelle:1521-3773
Abstract:The development of new methodologies enabling a facile access to valuable heterocyclic frameworks still is an important subject of research. In this context, we describe a dual catalytic cycle merging C−H alkynylation of phenols and oxy-alkynylation of the newly introduced triple bond by using a unique redox property and the carbophilic π acidity of gold. Mechanistic studies support the participation of a bimetallic gold-silver species. The one-pot protocol offers a direct, simple, and regio-specific approach to 3-alkynyl benzofurans from readily available phenols. A broad range of substrates, including heterocycles, is transferred with excellent functional group tolerance. Thus, this methodology can be used for the late-stage incorporation of benzofurans.
DOI:doi:10.1002/anie.202016595
URL:kostenfrei: Volltext: https://doi.org/https://doi.org/10.1002/anie.202016595
 kostenfrei: Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.202016595
 DOI: https://doi.org/10.1002/anie.202016595
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Alkynylation
 Au-Ag bimetallic catalysis
 Benzofurans
 Phenols
K10plus-PPN:1755587570
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