METHOD OF MAKING ISOIDIDE

Disclosed is a process for the preparation of isoidide from isosorbide. An aqueous solution of isosorbide is subjected to epimerization in the presence of hydrogen under the influence of a catalyst comprising ruthenium on a support preferably a carbon support. The process of the invention can be con...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	VAN ES DANIËL STEPHAN, LE NÔTRE JÉRÔME EMILE LUCIEN, VAN HAVEREN JACOBUS, MARTIN KEVIN, VAN EE JAN HENDRIK, HAGBERG ERIK
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Disclosed is a process for the preparation of isoidide from isosorbide. An aqueous solution of isosorbide is subjected to epimerization in the presence of hydrogen under the influence of a catalyst comprising ruthenium on a support preferably a carbon support. The process of the invention can be conducted using a relatively low hydrogen pressure and leads to a desired distribution of epimers favoring isoidide over isomannide and isosorbide.