β-Cyclodextrin catalyzed oxidation of some α-amino acids with Chloramine-T (cas 127-65-1) in alkaline medium: Kinetics and mechanistic studies

Add time:09/29/2019    Source:sciencedirect.com

The kinetics of oxidation of α-amino acids (AAs) by Chloramine-T (cas 127-65-1) (CAT) using β-cyclodextrin (BCD) as catalyst was studied in aqueous sodium hydroxide medium at 313 K. The kinetics of reactions was fractional-order with respect to [amino acids] and [β-cyclodextrin]. First-order with respect to [chloramine-T] and inverse fractional-order with respect to [OH−] have been found. Effect of ionic strength, added salt and reaction product (PTS) had no effect on reaction rate. The dependence of the reaction rate on temperature was studied and activation parameters were computed from Arrhenius–Eyring plots. The reaction mechanism and the derived rate law are consistent with the observed experimental results.

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