锇(VIII)在碱性水介质中催化双periodatocuate (III)氧化l -色氨酸的机理:动力学模型

N. Shetti, R. R. Hosamani, S. Nandibewoor
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引用次数: 2

摘要

在锇(VIII)存在的情况下,l -色氨酸与双periodatocuate (III) DPC在碱性介质中呈现1:4的化学反应(l -色氨酸:DPC)。该反应对[DPC]和[锇(VIII)]具有一级依赖性,对[l -色氨酸]和[碱]具有小于单位阶的依赖性,对[高碘酸盐]具有负分数阶依赖性。确定了催化剂和氧化剂的活性组分。通过光谱研究和斑点试验对主要产物进行了鉴定。提出了可能的机理并进行了讨论。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mechanistic Aspects of Osmium(VIII) Catalyzed Oxidation of L-Tryptophan by Diperiodatocuprate(III) in Aqueous Alkaline Medium: A Kinetic Model
In presence of osmium(VIII), the reaction between L-tryptophan and diperiodatocuprate(III) DPC in alkaline medium exhibits 1:4 stochiometry (L-tryptophan:DPC). The reaction shows first-order dependence on [DPC] and [osmium(VIII)], less than unit order in both [L-tryptophan] and [alkali], and negative fractional order in [periodate]. The active species of catalyst and oxidant have been identified. The main products were identified by spectral studies and spot test. The probable mechanism was proposed and discussed.
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