Journal
CHEMCATCHEM
Volume 7, Issue 9, Pages 1470-1477Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201500119
Keywords
fructose; 5-hydroxymethylfurfural; polyaniline; oxidation; supported catalysts
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Funding
- National Natural Science Foundation of China [21203252, 21373275, 21206200]
- Natural Science Foundation of Hubei Province, China [2012FFB07405]
- Chenguang Youth Science and Technology Project of Wuhan City [2014070404010212]
- China scholarship council [201408420018]
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Herein, polyaniline-grafted vanadyl acetylacetonate [VO(acac)(2)] was prepared and used as an effective catalyst for the oxidation of 5-hydroxymethylfurfural (HMF) under atmospheric oxygen pressure. A high HMF conversion of 99.2% was obtained after 12h at 110 degrees C, and 2,5-diformylfuran (DFF) was obtained in 86.2% yield. More importantly, the one-pot conversion of fructose into DFF was also realized with two binary catalysts: Amberlyst-15 and polyaniline-VO(acac)(2). Amberlyst-15 was used for the acid-catalyzed dehydration of fructose into HMF, followed by the insitu oxidation of HMF catalyzed by polyaniline-VO(acac)(2). DFF could be obtained in a yield of 42.1% from fructose by using the one-pot reaction, whereas two consecutive steps gave a higher DFF yield of 71.1%. Owing to the facile catalyst preparation and low cost, this method showed a promising potential for the synthesis of DFF from abundant carbohydrates.
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