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Phosphine-scavenging cationic gold(I) complexes: alternative applications of gold cocatalysis in fundamental palladium-catalyzed cross-couplings
journal contribution
posted on 2023-05-20, 05:23 authored by Curtis HoCurtis Ho, Alireza AriafardAlireza Ariafard, Hyland, CJT, Alexander BissemberAlexander BissemberWe have demonstrated that air-stable cationic gold(I) cocatalysts have the capacity to enhance the efficiency of palladium-catalyzed cross-couplings. Specifically, we determined that a 1:1 [Pd{P(t-Bu)3}2]/[Au{P(t-Bu)3}(NTf2)] system provides superior reactivity relative to [Pd{P(t-Bu)3}2], across Suzuki–Miyaura, Stille, and Mizoroki–Heck reactions performed under mild conditions. Our results are consistent with cationic gold(I) species serving primarily as phosphine scavengers in this chemistry, as recently predicted by density functional theory (DFT).
Funding
Australian Research Council
University of Wollongong
History
Publication title
OrganometallicsVolume
38Issue
13Pagination
2683-2688ISSN
0276-7333Department/School
School of Natural SciencesPublisher
Amer Chemical SocPlace of publication
1155 16Th St, Nw, Washington, USA, Dc, 20036Rights statement
© 2019 American Chemical SocietyRepository Status
- Restricted