Mechanistic Aspects of Osmium(VIII) Catalyzed Oxidation of L-Tryptophan by Diperiodatocuprate(III) in Aqueous Alkaline Medium: A Kinetic Model

2011 ◽  
pp. 278-285
Keyword(s):  
Kinetic Model ◽  
Alkaline Medium ◽  
Aqueous Alkaline Medium ◽  
Catalyzed Oxidation

scholarly journals Mechanistic Aspects of Osmium(VIII) Catalyzed Oxidation of L-Tryptophan by Diperiodatocuprate(III) in Aqueous Alkaline Medium: A Kinetic Model

2008 ◽  
Vol 2008 ◽  
pp. 1-5 ◽  
Author(s):  
Nagaraj P. Shetti ◽  
Ragunatharaddi R. Hosamani ◽  
Sharanappa T. Nandibewoor
Keyword(s):  
Kinetic Model ◽  
Alkaline Medium ◽  
Active Species ◽  
Probable Mechanism ◽  
Spot Test ◽  
Spectral Studies ◽  
Aqueous Alkaline Medium ◽  
Unit Order ◽  
First Order ◽  
Catalyzed Oxidation

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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