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Dual Gold/Silver Catalysis Involving Alkynylgold(III) Intermediates Formed by Oxidative Addition and Silver‐Catalyzed C−H Activation for the Direct Alkynylation of Cyclopropenes
Author(s) -
Yang Yangyang,
Antoni Patrick,
Zimmer Marc,
Sekine Kohei,
Mulks Florian F.,
Hu Long,
Zhang Lumin,
Rudolph Matthias,
Rominger Frank,
Hashmi A. Stephen K.
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201812577
Subject(s) - catalysis , alkynylation , chemistry , oxidative phosphorylation , oxidative addition , photochemistry , dual role , dual (grammatical number) , combinatorial chemistry , organic chemistry , biochemistry , art , literature
While gold‐mediated synergistic catalytic processes involving transmetalations with other metals are well understood, Au I /Au III cycles in these reactions are rarely reported. Herein a gold‐catalyzed direct alkynylation of cyclopropenes is enabled by two operating catalytic cycles, an oxidative catalytic cycle involving an alkynyl Au III complex formed by oxidative addition and one involving a silver‐mediated C−H activation.