4.8 Article

Copper-catalyzed oxidative alkyne homocoupling without palladium, ligands and bases

Journal

GREEN CHEMISTRY
Volume 13, Issue 8, Pages 2175-2178

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c1gc15318h

Keywords

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Funding

  1. National Natural Science Foundation of China [20872087, 20902057, 21002061]
  2. Key Laboratory of Synthetic Chemistry of Natural Substances, Chinese Academy of Sciences
  3. Shanghai Municipal Education Commission [J50101]
  4. Shanghai University

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Copper-catalyzed green oxidative homocoupling of terminal alkynes can be run to produce symmetrical 1,4-disubstituted 1,3-diynes in good to excellent yields, using air as environmentally friendly oxidant and the occurrence of water as exclusive byproduct in the whole process. This eliminates the need for ligands, bases, oxidants and expensive palladium catalysts.

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