Aerobic Oxidation of Alcohols with Gold Nanoparticles

X. Wang; H. Kawanami; N. M. Islam; M. Chattergee; T. Yokoyama; Y. Ikushima

doi:10.1055/s-0028-1083563

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Synfacts 2008(12): 1351-1351
DOI: 10.1055/s-0028-1083563

Polymer-Supported Synthesis

Aerobic Oxidation of Alcohols with Gold Nanoparticles

Contributor(s): Yasuhiro Uozumi, Takao Osako
X. Wang, H. Kawanami*, N. M. Islam, M. Chattergee, T. Yokoyama, Y. Ikushima
National Institute of Advanced Science and Technology, Sendai, Japan

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Publication History

Publication Date:
20 November 2008 (online)

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Significance

Amphiphilic block copolymer-stabilized gold nanoparticles (Au-sol) were prepared by the reduction of HAuCl₄ in an aqueous solution of P123 (EO₂₀PO₇₀EO₂₀) using NaBH₄. The gold nanoparticles catalyzed the oxidation of various alcohols in aqueous solution under O₂ to give the corresponding oxidized products in 27-100% conversions (7 examples). TEM analysis showed that the nanoparticles were enlarged after the reaction. In the first reusing run of the catalyst, the conversion for the oxidation of cyclooctanol decreased to 72%.