Polysaccharide derivative production method and lignin derivative production method
AssigneeNational University Corporation Kanazawa University
InventorsDaisuke Hirose, Samuel Budi Wardhana Kusuma, Chie Maruyama, Naoki Wada, Kenji Takahashi
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Abstract
An object of the present invention is to provide a method for producing a polysaccharide derivative in which the use of a reagent such as an acid catalyst is not needed and a reaction can be smoothly progressed without causing any side reactions. A method for producing a polysaccharide derivative of the present invention includes a step of dissolving a raw material including a polysaccharide in at least one ionic liquid having an anion which is a non-carboxylate anion and reacting the raw material with an acyl group donor, a conjugate acid of the anion having a pKa of 4 or higher in vacuum.
Claims4
A method for producing a polysaccharide derivative comprising:
- dissolving a raw material comprising a polysaccharide in an ionic liquid having an anion which is a non-carboxylate anion, wherein a conjugate acid of the non-carboxylate anion has a pKa of 4 or higher in vacuum, and reacting the raw material with an acyl group donor,
- wherein the anion is selected from the group consisting of a substituted or unsubstituted phenolate, a substituted or unsubstituted pyridinolate, a substituted or unsubstituted pyrimidinolate, a substituted or unsubstituted 2,6-dioxo-1,2,3,6-tetrahydropurin-7-ide, and a substituted or unsubstituted imidazol-1-ide.
Dependencies are inferred from the claim text.