FRUCTAN DERIVATIVES

摘要

It is possible to prepare cationic derivatives of fructans, such as inulin, in which a nitrogen atom having substituents R<1>, R<2> and R<3> is bonded to one or more anhydrofructose units via a straight-chain or branched C2-C6 alkylene group, which is optionally preceded by a carbonyl group or interrupted by one or two oxygen atoms or imino or alkylimino groups and optionally substituted by one or two hydroxyl groups or amine groups or a carboxyl or carbamoyl group, the substituents R<1>, R<2> and R<3> having the following meaning: R<1> and R<2> each represent hydrogen, methyl, carboxymethyl, phosphonomethyl, ethyl, hydroxyethyl, propyl, isopropyl, allyl, hydroxypropyl or dihydroxypropyl or, together with the nitrogen atom, form a cyclic group; R<3> represents hydrogen, C1-C18 alkyl, C3-C18 alkenyl, alkynyl or cycloalkyl, C4-C18 cycloalkyl-alkyl or C7-C18 aralkyl or is bonded via an alkylene group to an oxygen atom of a subsequent anhydrofructose unit. Processes for preparing these derivatives and uses thereof are described as well.