| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7787977 | Carbohydrate Polymers | 2015 | 8 Pages |
Abstract
This paper reports the selective oxidation of hyaluronic acid (HA) by stoichiometric quantity of 2,2,6,6-tetramethylpiperidine-1-oxoammonium chloride (TEMPO+) in aqueous alkaline medium. High efficiency of the HA oxidation and quantitative yield of carboxy-HA per starting TEMPO+, as well as unusual behavior of the oxidation system generating an oxygen upon alkali-induced oxoammonium chloride decomposition are demonstrated. The scheme for HA oxidation involving both TEMPO+ and oxygen produced upon the TEMPO+Clâ decomposition and/or air oxygen is proposed. For comparison, the data on stoichiometric oxidation of such substrates as dermatan sulfate, water-soluble potato starch, methyl 2-acetamido-2-deoxy-β-d-glucopyranoside and ethanol are presented.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Irina Yu Ponedel'kina, Elvira A. Khaibrakhmanova, Tatyana V. Tyumkina, Irina V. Romadova, Victor N. Odinokov,