Related Experiment Video
Updated: Jul 10, 2026

Synthesis and Purification of Iodoaziridines Involving Quantitative Selection of the Optimal Stationary Phase for Chromatography
Published on: May 16, 2014
Tagged hypervalent iodine reagents: a new purification concept based on ion exchange through SN2 substitution
Eike Kunst1, Florian Gallier, Gilles Dujardin
1Institut für Organische Chemie der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany.
Abstract:
The preparation of phenylsulfonate-tagged iodine(III) reagents as well as their use in a novel purification strategy for iodine(III)-promoted reactions is described. The concept is based on ion exchange and is initiated by an azide-promoted SN2-reaction at the alkyl sulfonate followed by trapping of the resulting aryl sulfonate anion with an ion-exchange resin. The concept is successfully proven for Ru-catalyzed oxidations of alcohols, the activation and glycosidation of thioglycosides, and the SuArez reaction of pyranoses.
More Related Videos
09:54Chemoselective Preparation of 1-Iodoalkynes, 1,2-Diiodoalkenes, and 1,1,2-Triiodoalkenes Based on the Oxidative Iodination of Terminal Alkynes
Published on: September 12, 2018
07:28An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter
Published on: July 13, 2018
Related Concept Videos
Ion-Exchange Chromatography
Ion Exchange
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Precipitation of Ions
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
Redox Titration: Iodimetry and Iodometry
Sublimation