Os(VIII)/Ru(III) catalysed oxidation of aspirin drug by a new oxidant, diperiodatoargentate(III) in aqueous alkaline medium: A comparative kinetic study

Kinetics and Mechanism of Ruthenium(III) Catalyzed Oxidation of LProline by Hexacyanoferrate(III) in Aqueous Alkali

“…However, in the present investigation, mechanism of Scheme 2 and second half of mechanism of Scheme 1 is reported to be dissimilar to the earlier work [2] and product obtained in the present study was found to be glutamic acid which is not identical to the reported [2] results. Apart from these, the results obtained in the Os(VIII) catalysis were largely different.…”

“…The reports available in literature on oxidation of L-proline by various oxidants reveal [2] that, the pyrrolidine ring cleavage take place at -carbon atom between -NH-and -CH-to yield 2-amino butaraldehyde and 2-amino butyric acid. The reports on oxidation of D-proline by hexacyanoferrate(III) reveals that the formation of keto acid by deamination was due to the rupturing of covalent bond at the same position of carbon atom in pyrrolidine ring.…”

“…This is further oxidized the at the same carbon to produce glutamic acid. However, the earlier reports [2] reveal that L-proline undergoes oxidation with the cleavage of pyrrolidine ring at the closest carbon atom from the carboxylic acid group followed by decarboxylation to give 4-amino butanol or 4-amino butyric acid, whereas D-proline leads to keto acid. Since L-proline has a cyclic structure with an imino [3] group attached at one end by -CH 2 and at other end by >CH -COOH, the cleavage at the closest carbon atom from carboxylic group is unusual.…”

Mechanistic Aspect of Iridium(III) Catalyzed Oxidation of Ethylene Glycol by Chloramine-T in Aqueous Acidic Medium: A Kinetic Model

“…Various transition metal catalysts have been used in the N-haloamine oxidation of organic substrates [22]. Recently, the use of transition metal ions, such as osmium, ruthenium and iridium either alone or as binary mixtures, as catalyst in various redox processes has drawn considerable attention [23]. Iridium(III) chloride is an important platinum group metal ion and has been extensively used as homogeneous catalyst in a number of redox reactions [24].…”

Mechanistic investigation of oxidation of glycine and alanine by bis(dihydrogen-tellurto)argentite(III) ion in alkaline medium. A kinetic study

“…These complexes have been used widely in kinetic studies and the kinetics and mechanism of oxidation of some chemical reagents by Ag(III) complexes had been studied [15][16][17][18][19]. However, oxidation of glycine and alanine by bis(dihydrogen-tellurto)argentite(III) has not been reported.…”