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Phasentransferkatalysatoren auf Basis von Saccharose-Ethylenoxid-Addukten
Authors:Heinrich Gruber  Gerd Greber
Affiliation:(1) Institut für chemische Technologie organischer Stoffe, Technische Universität Wien, A-1060 Wien, Österreich
Abstract:Sucrose ethyleneoxide adducts have been prepared by reaction of sucrose with various amounts of ethyleneoxide inDMSO. The resulting polypode molecules were found to be efficient phase transfer catalysts in nucleophilic substitutions, oxidation and dichlorcarbene generation. Polymerisable polypodes have been obtained by reaction of sucrose ethyleneoxide adducts with methacrylic anhydride or methacryloylchloride in pyridine. Free radical polymerisation of the resulting mixtures of mono- and polyfunctional methacrylic esters of sucrose ethyleneoxide adducts yielded crosslinked gels. These polymer-supported ldquooctopus-moleculesrdquo were found to be efficient triphase catalysts.
Keywords:Polypode ligand as phase transfer catalyst  Polypode ligand, polymer supported
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