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Vol. 28 No. 9 (2016): Vol 28 Issue 9

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Oxidation of Glycylglycine by KBrO3 in Aqueous Acetic Acid Medium and Comparison with Monomer Glycine: A Kinetic and Mechanistic Study

https://doi.org/10.14233/ajchem.2016.19729
Prameela Kethavath
Department of Chemistry, Dr. B.R. Ambedkar Open University, Hyderabad-500 033, India
Anjaiah Birla
Department of Chemistry, Osmania University, Hyderabad-500 007, India
Srinivas Pabba
Department of Chemistry, Osmania University, Hyderabad-500 007, India

Corresponding Author(s) : Srinivas Pabba

prameelachembraou@gmail.com

Asian Journal of Chemistry, Vol. 28 No. 9 (2016): Vol 28 Issue 9

Abstract

The kinetics of oxidation reactions of dipeptide glycylglycine (GG) by KBrO3 in aqueous acetic acid medium, under the condition [KBrO3] << [GG] at different temperatures (313-323 K), to produce formic acid, ammonia, carbon dioxide and water were studied. Study of the kinetic results showed that the first order dependence in [KBrO3] and fractional order dependence in [GG]. The effect of ionic strength and [AcOH] on rate was studied and thermodynamic parameters were also calculated. Michealis-Menten type mechanism was proposed.

Keywords

Glycylglycine Glycine Potassium bromate Acetic acid
Kethavath, P., Birla, A., & Pabba, S. (2016). Oxidation of Glycylglycine by KBrO3 in Aqueous Acetic Acid Medium and Comparison with Monomer Glycine: A Kinetic and Mechanistic Study. Asian Journal of Chemistry, 28(9), 1899–1902. https://doi.org/10.14233/ajchem.2016.19729
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