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Molecules 2010, 15(6), 3863-3877; doi:10.3390/molecules15063863
Article

Acid-Catalysed Conversion of Saccharides into Furanic Aldehydes in the Presence of Three-Dimensional Mesoporous Al-TUD-1

1
,
1
,
2
,
1
,
2
 and
1,*
1 Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal 2 Institute for Biotechnology and Bioengineering, Centre for Biological and Chemical Engineering, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
* Author to whom correspondence should be addressed.
Received: 13 April 2010 / Revised: 24 May 2010 / Accepted: 26 May 2010 / Published: 28 May 2010
(This article belongs to the Special Issue Nano-catalysts and Nano-technologies for Green Organic Synthesis)
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Abstract

The one-pot acid-catalysed conversion of mono/di/polysaccharides (inulin, xylan, cellobiose, sucrose, glucose, fructose, xylose) into 2-furfuraldehyde (FUR) or 5-hydroxymethylfurfural (HMF) in the presence of aluminium-containing mesoporous TUD-1 (denoted as Al-TUD-1, Si/Al = 21), at 170 ºC was investigated. Xylose gave 60% FUR yield after 6 h reaction; hexose-based mono/disaccharides gave less than 20% HMF yield; polysaccharides gave less than 20 wt % FUR or HMF yields after 6 h. For four consecutive 6 h batches of the xylose reaction in the presence of Al-TUD-1, the FUR yields achieved were similar, without significant changes in Si/Al ratio.
Keywords: solid acid; mesoporous materials; biomass valorisation; 2-furfuraldehyde; 5-hydroxymethylfurfural solid acid; mesoporous materials; biomass valorisation; 2-furfuraldehyde; 5-hydroxymethylfurfural
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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Lima, S.; Antunes, M.M.; Fernandes, A.; Pillinger, M.; Ribeiro, M.F.; Valente, A.A. Acid-Catalysed Conversion of Saccharides into Furanic Aldehydes in the Presence of Three-Dimensional Mesoporous Al-TUD-1. Molecules 2010, 15, 3863-3877.

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