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Kinetics and mechanism of oxidation of glycine, alanine, and threonine by fluoride coordinated bismuth(V) in aqueous HClO 4 –HF medium
Author(s) -
Devra Vijai,
Jain Seema,
Sharma P. D.
Publication year - 1994
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550260511
Subject(s) - chemistry , kinetics , bismuth , glycine , alanine , reaction rate constant , aqueous solution , amino acid , threonine , inorganic chemistry , medicinal chemistry , stereochemistry , organic chemistry , serine , enzyme , biochemistry , physics , quantum mechanics
The kinetics of oxidation of amino acids viz. glycine, alanine, and threonine with bismuth(V) in HClO 4 –HF medium have been studied. The kinetics of the oxidation of all these amino acids exhibit similar rate laws. The second‐order rate constants were calculated to be 2.04 × 10 −2 dm 3 mol −1 and 2.72 × 10 −2 dm 3 mol −1 s −1 for glycine and alanine, respectively, at 35°C and 5.9 × 10 −2 dm 3 mol −1 s −1 for threonine at 25°C. All the possible reactive species of both bismuth(V) and amino acids have been discussed and a most probable kinetic model in each reaction has been envisaged. © 1994 John Wiley & Sons, Inc.