Kinetics of Oxidation of Some Amino Acids by N-Chlorosaccharin in Aqueous Acetic Acid Medium

The kinetics of oxidation of some amino acids namely, glycine, alanine, aspartic acid, arginine, and histidine, (AA) by N-chlorosaccharin (NCSA) in aqueous acetic acid medium in the presence of perchloric acid have been investigated. The observed rate of oxidation is first order in [AA], [NCSA] and...

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Main Authors: N. A. Mohamed Farook, R. Prabaharan, S. Rahini, R. Senthil Kumar, G. Rajamahendran, B. Gopala Krishnan
Format: Article
Language:English
Published: Wiley 2004-01-01
Series:E-Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2004/406567
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author N. A. Mohamed Farook
R. Prabaharan
S. Rahini
R. Senthil Kumar
G. Rajamahendran
B. Gopala Krishnan
author_facet N. A. Mohamed Farook
R. Prabaharan
S. Rahini
R. Senthil Kumar
G. Rajamahendran
B. Gopala Krishnan
author_sort N. A. Mohamed Farook
collection DOAJ
description The kinetics of oxidation of some amino acids namely, glycine, alanine, aspartic acid, arginine, and histidine, (AA) by N-chlorosaccharin (NCSA) in aqueous acetic acid medium in the presence of perchloric acid have been investigated. The observed rate of oxidation is first order in [AA], [NCSA] and of inverse fractional order in [H+]. The main product of the oxidation is the corresponding aldehyde. The ionic strength on the reaction rate has no significant effect. The effect of changing the dielectric constant of the medium on the rate indicates the reaction to be of dipole-dipole type. Hypochlorous acid has been postulated as the reactive oxidizing species. The reaction constants involved in the mechanism are derived. The activation parameters are computed with respect to slow step of the mechanism.
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institution Kabale University
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publishDate 2004-01-01
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series E-Journal of Chemistry
spelling doaj-art-153a66fc0df6441d934d8b3abff2b4312025-08-20T03:54:25ZengWileyE-Journal of Chemistry0973-49452090-98102004-01-011212713110.1155/2004/406567Kinetics of Oxidation of Some Amino Acids by N-Chlorosaccharin in Aqueous Acetic Acid MediumN. A. Mohamed Farook0R. Prabaharan1S. Rahini2R. Senthil Kumar3G. Rajamahendran4B. Gopala Krishnan5P. G & Research Department of Chemistry Khadir Mohideen College, Adirampattinam -614 701, IndiaP. G & Research Department of Chemistry Khadir Mohideen College, Adirampattinam -614 701, IndiaP. G & Research Department of Chemistry Khadir Mohideen College, Adirampattinam -614 701, IndiaP. G & Research Department of Chemistry Khadir Mohideen College, Adirampattinam -614 701, IndiaP. G & Research Department of Chemistry Khadir Mohideen College, Adirampattinam -614 701, IndiaP. G & Research Department of Chemistry Khadir Mohideen College, Adirampattinam -614 701, IndiaThe kinetics of oxidation of some amino acids namely, glycine, alanine, aspartic acid, arginine, and histidine, (AA) by N-chlorosaccharin (NCSA) in aqueous acetic acid medium in the presence of perchloric acid have been investigated. The observed rate of oxidation is first order in [AA], [NCSA] and of inverse fractional order in [H+]. The main product of the oxidation is the corresponding aldehyde. The ionic strength on the reaction rate has no significant effect. The effect of changing the dielectric constant of the medium on the rate indicates the reaction to be of dipole-dipole type. Hypochlorous acid has been postulated as the reactive oxidizing species. The reaction constants involved in the mechanism are derived. The activation parameters are computed with respect to slow step of the mechanism.http://dx.doi.org/10.1155/2004/406567
spellingShingle N. A. Mohamed Farook
R. Prabaharan
S. Rahini
R. Senthil Kumar
G. Rajamahendran
B. Gopala Krishnan
Kinetics of Oxidation of Some Amino Acids by N-Chlorosaccharin in Aqueous Acetic Acid Medium
E-Journal of Chemistry
title Kinetics of Oxidation of Some Amino Acids by N-Chlorosaccharin in Aqueous Acetic Acid Medium
title_full Kinetics of Oxidation of Some Amino Acids by N-Chlorosaccharin in Aqueous Acetic Acid Medium
title_fullStr Kinetics of Oxidation of Some Amino Acids by N-Chlorosaccharin in Aqueous Acetic Acid Medium
title_full_unstemmed Kinetics of Oxidation of Some Amino Acids by N-Chlorosaccharin in Aqueous Acetic Acid Medium
title_short Kinetics of Oxidation of Some Amino Acids by N-Chlorosaccharin in Aqueous Acetic Acid Medium
title_sort kinetics of oxidation of some amino acids by n chlorosaccharin in aqueous acetic acid medium
url http://dx.doi.org/10.1155/2004/406567
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