Oxidant speciation and anionic ligand effects in the gold-catalyzed oxidative coupling of arenes and alkynes.
Journal
Chemical science
ISSN: 2041-6520
Titre abrégé: Chem Sci
Pays: England
ID NLM: 101545951
Informations de publication
Date de publication:
28 Sep 2019
28 Sep 2019
Historique:
received:
15
05
2019
accepted:
09
07
2019
entrez:
6
12
2019
pubmed:
6
12
2019
medline:
6
12
2019
Statut:
epublish
Résumé
The mechanism of the gold-catalyzed oxidative cross-coupling of arenes and alkynes has been studied in detail combining stoichiometric experiments with putative reaction intermediates and DFT calculations. Our data suggest that ligand exchange between the alkyne, the Au(i)-catalyst and the hypervalent iodine reagent is responsible for the formation of both an Au(i)-acetylide complex and a more reactive "non-symmetric" I(iii) oxidant responsible for the crucial Au(i)/Au(iii) turnover. Further, the reactivity of the
Identifiants
pubmed: 31803420
doi: 10.1039/c9sc02372k
pii: c9sc02372k
pmc: PMC6844217
doi:
Types de publication
Journal Article
Langues
eng
Pagination
8411-8420Informations de copyright
This journal is © The Royal Society of Chemistry 2019.
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