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Dual Gold/Photoredox-Catalyzed C(sp)−H Arylation of Terminal Alkynes with Diazonium Salts

A. Tlahuext-Aca,† M. N. Hopkinson,† B. Sahoo, F. Glorius* – 2015

The arylation of alkyl and aromatic terminal alkynes by a dual gold/photoredox catalytic system is described. Using aryldiazonium salts as readily available aryl sources, a range of diversely-functionalized arylalkynes could be synthesized under mild, base-free reaction conditions using visible light from simple household sources or even sunlight. This process, which exhibits a broad scope and functional group tolerance, expands the range of transformations amenable to dual gold/photoredox catalysis to those involving C–H bond functionalization and demonstrates the potential of this concept to access AuI/AuIII redox chemistry under mild, redox-neutral conditions.

Title
19. Dual Gold/Photoredox-Catalyzed C(sp)−H Arylation of Terminal Alkynes with Diazonium Salts
Author
A. Tlahuext-Aca,† M. N. Hopkinson,† B. Sahoo, F. Glorius*
Publisher
Chemical Science
Date
2015
Identifier
DOI: 10.1039/C5SC02583D
Source(s)
Citation
Chem. Sci. 2015, 7, 89-93