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Synfacts 2008(3): 0318-0318  
DOI: 10.1055/s-2008-1042674
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart · New York

Aerobic Oxidation of Alcohols with CHP-Supported Ruthenium Species

Contributor(s): Yasuhiro Uozumi, Takao Osako
J. Liu, F. Wang, K. Sun, X. Xu*
State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou and Graduate School of the Chinese Academy of Science, Beijing, P. R. of China
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Publikationsdatum:
21. Februar 2008 (online)

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Significance

Selective aerobic oxidation of alcohols was catalyzed by a monomeric ruthenium species bound to the surface of micro-size copper hydrogen phosphate (RuCHP). RuCHP was readily prepared by mixing an aqueous RuCl3 solution and micro-size copper hydrogen phosphate (CHP). Aerobic oxidation of benzyl alcohol was carried out with RuCHP at 80 °C to give benz­aldehyde in 99% yield. This catalyst was reused three times without loss of activity. Thus, the second and third reusing runs of the aerobic oxidation gave benzaldehyde in 98% and 97% yield, respectively.