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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 (CC BY 3.0).

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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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