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http://nopr.niscpr.res.in/handle/123456789/22568| Title: | Mechanistic investigation of oxidation of 6-deoxyhexoses by sodium N-chloro-p-toluenesulfonamide in alkaline medium |
| Authors: | Rangappa, K S Raghavendra, M P Anitha, N Gowda, D Channe |
| Issue Date: | Nov-2000 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The kinetics and mechanism of oxidation of L-fucose and L-rhamnose by chloramine-T (CAT) in alkaline medium has been investigated at 40°C. The rate of the reaction is first order with respect to [sugar][CAT] and [hydroxide ion]. The reaction rate is influenced by a change in ionic strength of the medium and the dielectric effect has been found to be negative. Proton inventory studies have been made in H2O- D2O mixtures. Activation parameters have been determined from the Arrhenius plots. HPLC and GLC-MS analyses of the products indicate that 6-deoxyhexoses are oxidized to a mixture of aldonic acids. The proposed mechanism is consistent with the observed results. |
| Page(s): | 836-841 |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Appears in Collections: | IJC-B Vol.39B(11) [November 2000] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 39B(11) 836-841.pdf | 1.28 MB | Adobe PDF | View/Open |
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