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The Ru(III)/Os(VIII)/Pd(II)/Pt(IV)‐catalysed kinetics of oxidation of glycyl–glycine (Gly‐Gly) by sodium N‐chloro‐p‐ toluenesulfonamide (chloramine‐T; CAT) in NaOH medium has been investigated at 308 K. The stoichiometry and oxidation products in each case were found to be the same but their kinetic patterns observed are different. Under comparable experimental conditions, the oxidation‐kinetics and mechanistic behaviour of Gly‐Gly with CAT in NaOH medium is different for each catalyst and obeys the underlying rate laws:
- Rate = k [CAT]t [Gly‐Gly]0 [Ru(III)][OH?]x
- Rate = k [CAT]t[Gly‐Gly]x [Os(VIII)]y[OH?]z
- Rate = k [CAT]t[Gly‐Gly]x [Pd(II)][OH?]y
- Rate = k [CAT]t[Gly‐Gly]0 [Pt(IV)]x[OH?]y
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