Efficient synthesis of cellulose furoates in 1-<Emphasis Type="Italic">N</Emphasis>-butyl-3-methylimidazolium chloride |
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Authors: | Sarah Köhler Thomas Heinze |
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Institution: | (1) Centre of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstraβe 10, 07743 Jena, Germany |
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Abstract: | The ionic liquid 1-N-butyl-3-methylimidazolium chloride (C4mim]+Cl−) was investigated as reaction media for the homogeneous acylation of cellulose with 2-furoyl chloride in the presence of
pyridine. The preparation of cellulose furoate depending on the reaction conditions, the cellulose type and the pyridine content
was studied. Cellulose furoates with a degree of substitution in the range from 0.46 to 3.0 were accessible, i.e., under mild
conditions, with a low excess of reagent and in a short reaction time. The products were characterized by elemental analysis,
perpropionylation, 1H- and 13C NMR spectroscopy and FTIR spectroscopy.
Thomas Heinze is the member of the European Polysaccharide Network of Excellence (EPNOE), www.epnoe.eu |
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Keywords: | Ionic liquids Cellulose furoate Dissolution of cellulose Furoyl chloride Homogeneous reaction |
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