Homocoupling of Terminal Alkynes with a Nano-Copper Catalyst

F. Alonso; T. Melkonian; Y. Moglie; M. Yus

doi:10.1055/s-0030-1260591

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Synfacts 2011(7): 0801-0801
DOI: 10.1055/s-0030-1260591

Polymer-Supported Synthesis

Homocoupling of Terminal Alkynes with a Nano-Copper Catalyst

Contributor(s): Yasuhiro Uozumi, Yoichi M. A. Yamada, Takuma Sato
F. Alonso*, T. Melkonian, Y. Moglie, M. Yus*
Universidad de Alicante, Spain

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Publication History

Publication Date:
17 June 2011 (online)

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Significance

TiO₂-supported copper nanoparticles (CuNPs/TiO₂) catalyzed the oxidative homocoupling of terminal alkynes 1. Thus, the homocoupling of phenylacetylene (1a) proceeded smoothly in the presence of CuNPs/TiO₂ and piperidine to give 1,4-diphenyl-1,3-butadiyne (2a) in 97% yield. The catalyst was recovered by filtration and reused without any reactivating treatment.