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Kinetic study of the oxidation of L‐phenylalanine by potassium permanganate in acid medium
Author(s) -
Insausti M. J.,
MataPÉRez F.,
AlvarezMacho M. P.
Publication year - 1995
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.550270509
Subject(s) - chemistry , potassium permanganate , autocatalysis , ionic strength , permanganate , kinetics , phenylalanine , inorganic chemistry , reaction rate constant , reaction mechanism , redox , catalysis , organic chemistry , amino acid , biochemistry , aqueous solution , physics , quantum mechanics
The kinetics of permanganate oxidation of L‐phenylalanine in acid medium at a constant ionic strength has been investigated spectrophotometrically. An autocatalytic reaction was observed being autocatalyzed by a soluble form of Mn(IV). The reaction appears to involve a parallel consecutive reaction process in which Mn(IV) is formed as an intermediate and Mn(II) as a reaction product. A tentative mechanism consistent with the kinetics is discussed. © 1995 John Wiley & Sons, Inc.