Molecules 2012, 17(4), 3690-3707; doi:10.3390/molecules17043690
Article

Coupling of Nanoporous Chromium, Aluminium-Containing Silicates with an Ionic Liquid for the Transformation of Glucose into 5-(Hydroxymethyl)-2-furaldehyde

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Received: 17 February 2012; in revised form: 6 March 2012 / Accepted: 20 March 2012 / Published: 26 March 2012
(This article belongs to the Special Issue Ionic Liquids)
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.
Abstract: Micro/mesoporous chromium, aluminium-containing silicates of the type TUD-1 (Al-TUD-1, Cr-TUD-1, CrAl-TUD-1) and zeolite BEA, Cr-BEA, and related composites BEA/TUD-1 and Cr-BEA/TUD-1, were prepared, characterised, and tested as solid acids coupled with the ionic liquid (IL) 1-butyl-3-methylimidazolium chloride ([bmim]Cl) as solvent, in the transformation of d-glucose into 5-(hydroxymethyl)-2-furaldehyde (Hmf), at 120 °C. The chromium-containing catalytic systems lead to considerably higher Hmf yields in comparison to the related systems without chromium. The IL is a favourable solvent for this target reaction (in terms of Hmf yields reached) compared to water or dimethylsulfoxide. A detailed study on the stabilities of the nanoporous solid acids in the IL medium is presented.
Keywords: glucose; 5-(hydroxymethyl)-2-furaldehyde; ionic liquid; solid acids
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MDPI and ACS Style

Antunes, M.M.; Lima, S.; Pillinger, M.; Valente, A.A. Coupling of Nanoporous Chromium, Aluminium-Containing Silicates with an Ionic Liquid for the Transformation of Glucose into 5-(Hydroxymethyl)-2-furaldehyde. Molecules 2012, 17, 3690-3707.

AMA Style

Antunes MM, Lima S, Pillinger M, Valente AA. Coupling of Nanoporous Chromium, Aluminium-Containing Silicates with an Ionic Liquid for the Transformation of Glucose into 5-(Hydroxymethyl)-2-furaldehyde. Molecules. 2012; 17(4):3690-3707.

Chicago/Turabian Style

Antunes, Margarida M.; Lima, Sérgio; Pillinger, Martyn; Valente, Anabela A. 2012. "Coupling of Nanoporous Chromium, Aluminium-Containing Silicates with an Ionic Liquid for the Transformation of Glucose into 5-(Hydroxymethyl)-2-furaldehyde." Molecules 17, no. 4: 3690-3707.

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