Mechanism of oxidation of L-tyrosine by sodium N-bromobenzenesulphonamide in acid medium. A kinetic approach

被引：0
|
作者：
Puttaswamy [1 ]
Vaz, N [1 ]
机构：
[1] Bangalore Univ, Cent Coll, Dept Postgrad Studies Chem, Bangalore, Karnataka, India
来源：
OXIDATION COMMUNICATIONS | 2004年 / 27卷 / 01期
关键词：
oxidation kinetics; L-tyrosine; bromamine-B; acid medium;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The kinetics of oxidation of L-tyrosine (Tyr) by sodium N-bromobenzenesulphonamide or bromamine-B (BAB) has been studied in HCl medium at 283 K. The rate shows a first order dependence on [BAB], fractional: orders in [H+] and [Cl-] and is independent of [Tyr](0). The effect of ionic strength and benzenesulphonamide has been studied. The dielectric effect is positive. Proton. inventory studies were made in H2O-D2O mixtures. Activation parameters have been computed. Oxidation product of tyrosine was found to be the corresponding brominated aldehyde. Mechanism proposed and the derived rate law. are, consistent with the observed kinetics.
引用
收藏
页码：148 / 156
页数：9
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