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Isosorbide synthesis from cellulose with an efficient and recyclable ruthenium catalyst
University of Helsinki, Finland.
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Number of Authors: 10
2017 (English)In: Green Chemistry, ISSN 1463-9262, E-ISSN 1463-9270, Vol. 19, no 19, 4563-4570 p.Article in journal (Refereed) Published
Abstract [en]

Herein, we describe an efficient two-step pathway for isosorbide synthesis from cellulose with the use of new recyclable Ru-catalysts. We show that the oxidative and sulfonation treatments of the new Ru-catalysts increase the acidity and the hydrophilicity of the activated carbon support material, thus reducing the catalyst fouling caused by the build-up of insoluble products. Accordingly, the new Ru-catalysts are more resilient towards lignin containing cellulose than a commercial Ru/C catalyst, and the best Ru-catalyst maintains its high catalytic activity in four consecutive runs with dissolving pulp, microcrystalline cellulose and even with residual lignin containing bagasse pulp. Overall, our two-step approach provides isosorbide in high yields of 56-57 mol% ( 49-50 wt% of the substrate) from the cellulosic substrates.

Place, publisher, year, edition, pages
2017. Vol. 19, no 19, 4563-4570 p.
National Category
Organic Chemistry
Identifiers
URN: urn:nbn:se:su:diva-147843DOI: 10.1039/C7GC01821EISI: 000412143000013OAI: oai:DiVA.org:su-147843DiVA: diva2:1153967
Available from: 2017-11-01 Created: 2017-11-01 Last updated: 2017-11-01Bibliographically approved

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