Iyengar, T. A. and Puttaswamy and Mahadeppa, D. S. (1990) Oxidation of some aldopentoses by chloramine-b in alkaline-medium - a kinetic and mechanistic study. Carbohydrate Research, 204. pp. 197-206.
Full text not available from this repository. (Request a copy)Abstract
The oxidation kinetics of D-XylOSe, D-ribose, and L-arabinose by chloramine-B (CAB) in alkaline medium at 35” obey the rate law, rate = [CAB][HO-][Pentose]. Based on the results, a mechanism is suggested involving the anion of thea anomer of the pentose. The addition of reaction products, benzenesul- phonamide and NaCI, had no effect on the rate of reaction whereas increase in the ionic strength and dielectric constant of the medium increased the rate. Proton-inventory studies were made in Hz&D,0 mixtures. The rate of oxidation of pentoses follows the order’: D-XylOSe > n-ribose > L-arabinose. Kinetic and thermodynamic parameters for the reaction were computed from the Arrhenius plots. The isokinetic temperature p = 416 K, which is much above the experimental temperature, suggests enthalpy-controlled reactions.
| Item Type: | Article |
|---|---|
| Subjects: | B Life Science > Zoology |
| Divisions: | Department of > Chemistry |
| Depositing User: | Dr Raju C |
| Date Deposited: | 21 Jan 2021 09:57 |
| Last Modified: | 27 Jan 2021 07:20 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/14321 |
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