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Communication | Special issue | Vol 86, No. 2, 2012, pp.1023-1030
Published online, 14th November, 2012
DOI: 10.3987/COM-12-S(N)125
Ligand Modified CuFe2O4 Nanoparticles as Magnetically Recoverable and Reusable Catalyst for Azide-Alkyne Click Condensation

Shingo Ishikawa, Reuben Hudson, Audrey Moores,* and Chao-Jun Li*

*Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, Quebec H3A 2K6, Canada


A ligand can make the trick: 2,2’-bipyridine was found to promote the activity of copper ferrite nanoparticles as catalysts for the azide-alkyne “click” coupling reaction. The reaction proceeded in excellent yields at room temperature, and the catalyst could be magnetically separated and recycled. Phosphorus and nitrogen containing ligands were tested and 2,2’-bipyridine proved to be the most efficient for this reaction.