期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 22, 期 17, 页码 5909-5913出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201600710
关键词
alkynes; arylation; diazonium salts; gold; synthetic methods
资金
- NRW Graduate School of Chemistry
- Alexander von Humboldt Foundation
- DFG (Leibniz Award)
Highly selective tandem nucleophilic addition/cross-coupling reactions of alkynes have been developed using visible-light-promoted dual gold/photoredox catalysis. The simultaneous oxidation of Au-I and coordination of the coupling partner by photo-generated aryl radicals, and the use of catalytically inactive gold precatalysts allows for high levels of selectivity for the cross-coupled products without competing hydrofunctionalization or homocoupling. As demonstrated in representative arylative Meyer-Schuster and hydration reactions, this work expands the scope of dual gold/photoredox catalysis to the largest class of substrates for gold catalysts and benefits from the mild and environmentally attractive nature of visible-light activation.
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