, Volume 116, Issue 3-4, pp 94-100
Date: 04 May 2007

Sonogashira reactions catalyzed by water-soluble, β-cyclodextrin-capped palladium nanoparticles

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The Sonogashira reaction was efficiently catalyzed by β-cyclodextrin-capped Pd nanoparticles (β-CD/Pd) in aqueous solution at room temperature. In addition, PPh3 was not necessary to be present in the reaction media, and CuI, one major requirement for the typical homogeneous Sonogashira reaction, could be completely omitted without affecting the catalytic activity of β-CD/Pd nanoparticles. This study offers a new example of using β-CD-capped metal nanoparticles as a novel nanocatalyst for catalytic organic reaction in aqueous solution.