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Molecules 2008, 13(4), 948-957; doi:10.3390/molecules13040948
Article

CuO and Ag2O/CuO Catalyzed Oxidation of Aldehydes to the Corresponding Carboxylic Acids by Molecular Oxygen

,  and *
The Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, P.R. China
* Author to whom correspondence should be addressed.
Received: 6 April 2008 / Revised: 17 April 2008 / Accepted: 17 April 2008 / Published: 21 April 2008
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Abstract

Furfural was oxidized to furoic acid by molecular oxygen under catalysis by 150nm-sized Ag2O/CuO (92%) or simply CuO (86.6%). When 30 nm-size catalyst was used,the main product was a furfural Diels-Alder adduct. Detailed reaction conditions andregeneration of catalysts were investigated. Under optimal conditions, a series of aromaticand aliphatic aldehydes were oxidized to the corresponding acids in good yields.
Keywords: CuO; Ag2O/CuO; catalyzed oxidation. CuO; Ag2O/CuO; catalyzed oxidation.
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Tian, Q.; Shi, D.; Sha, Y. CuO and Ag2O/CuO Catalyzed Oxidation of Aldehydes to the Corresponding Carboxylic Acids by Molecular Oxygen. Molecules 2008, 13, 948-957.

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