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Synfacts 2008(6): 0658-0658  
DOI: 10.1055/s-2008-1072800
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart · New York

Oxidation of Alcohols Using Carbon-Supported Copper-Manganese Oxide

Contributor(s): Yasuhiro Uozumi, Toshimasa Suzuka
G. Yang*, W. Zhu, P. Zhang, H. Xue, W. Wang, J. Tian, M. Song*
Zhengzhou University, P. R. of China
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Publication History

Publication Date:
21 May 2008 (online)

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Significance

Carbon-supported copper-manganese oxide (Cu-Mn oxide/C) was found to promote the oxidation of alcohols using 2,2,6,6-tetra­methylpiperidyl-1-oxyl (TEMPO) under neutral conditions. Thus, the Cu-Mn oxide/C was prepared from active carbon, copper nitrate, and manganese nitrate according to the reported procedures (F. Wang, G. Yang, W. Zhang, W. Wu, J. Xu Chem. Commun. 2003, 1172). The oxidation of benzyl alcohol with molecular oxygen (0.4 MPa) was carried out in the presence of 10 wt% of the Cu-Mn oxide/C and 0.5 mol% of TEMPO in CH2Cl2 to give benzaldehyde in 96% isolated yield. The Cu-Mn oxide/C was recovered and reused five times without any loss of catalytic activity (average 86% conversion for five times).