Determination of Diaryliodonium Species by Reverse Iodometric Titration with Ascorbic Acid |
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| Authors: | Jan D. Buriánek Jaroslav Kvicala Lada Sekerova Bernd H. Müller Robert Francke Tomas Bystron |
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| Affiliation: | 1. Department of Inorganic Technology, University of Chemistry and Technology, Prague, Technicka 5, 166 28 Prague 6, Czech Republic;2. Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technicka 5, 166 28 Prague 6, Czech Republic;3. Department of Organic Technology, University of Chemistry and Technology, Prague, Technicka 5, 166 28 Prague 6, Czech Republic;4. Leibniz Institute for Catalysis, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany |
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| Abstract: | Diaryliodonium salts are used in organic chemistry, materials science and pharmaceutical chemistry. For the quantitative analysis of diaryliodonium salts, only instrumentally demanding techniques requiring highly skilled operators are available. Surprisingly, no titration method taking advantage of the oxidising ability of diaryliodonium is available in the literature. In the present work, a titration method for the determination of diaryliodonium salts is presented. It is based on the reaction of diaryliodonium species with ascorbic acid, whose excess is subsequently determined by means of iodometric potentiometric titration. Application of the protocol to various diaryliodonium salts revealed the scope and limitations of the method. |
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| Keywords: | diaryliodonium salt potentiometric titration ascorbic acid iodometry |
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