M S Ramezanian

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The kinetics and products of the reaction of peroxynitrite with the phenolic compounds phenol, tyrosine, and salicylate were studied as a function of pH. All reactions are first-order in peroxynitrite and zero-order in the phenolic compound. Relative to the hydroxyl group, electrophilic substitution in the 2- and 4-positions (if available) leads to(More)
The reaction between peroxynitrous acid (hydrogen oxoperoxonitrate) and L-tryptophan is 130 M(-1)s(-1) at 25°C. The pH dependence of the second-order rate constant shows a maximum at pH 5.1. The enthalpy and entropy of activation at pH 7.1 are 10.6 ± 0.4 kcal.mol(-1) and -16 ± 2 cal.mol(-1)K(-1) respectively. High-performance liquid chromatography analysis(More)
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