Kinetics and mechanism of oxidation of carbohydrazide by chloramine-T and bromamine-T in aqueous perchloric acid medium

Gowda, B.T.; Ramachandra, P.

doi:10.1007/bf02867826

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…Gowda and Ramachandra investigated the kinetics involved in the oxidation of carbohydrazide by chloramine-T (CAT) and bromamine-T (BAT) in an aqueous perchloric acid medium (Scheme 38). 63 At low [H + ], the oxidation by both CAT and BAT were found to exhibit first-order, fractional-order and inverse fractional-order kinetics with respect to [oxidant], [substrate] and [H + ] respectively. However, at higher H + concentration, the rate becomes independent of [H + ] and exhibits fractional-order dependence on CAT and BAT.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Bromamine-T (TsNBrNa): A Biologically Significant, Versatile Bromo-Organic Reagent

Kashyap¹,

Phukan²

2023

Synlett

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Bromamine-T (BAT) is a distinguished member of a special class of compounds called organic haloamines, possessing oxidising properties. It can act as the source of halonium ions, hypohalite species, and N-anions, along with the display of basic as well as nucleophilic properties. Bromamine-T finds wide application as an efficient reagent for various organic transformations such as aminobromination, amination, oxidation etc., under mild conditions with minimum toxicity. Moreover, due to its immense biological significance, this reagent is piquing the interest of numerous researchers.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Bromamine-T (TsNBrNa): A Biologically Significant, Versatile Bromo-Organic Reagent

Kashyap¹,

Phukan²

2023

Synlett

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Kinetics and mechanisms of oxidation of thiosemicarbazide, its metal complex and hydrazones by N‐chlorobenzamide in water methanol medium

Nayak

Gowda

1992

J of Physical Organic Chem

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The kinetics of oxidation of thiosemicarbazide (TSC) its zinc metal complex and hydrazones by N‐chlorobenzamide (NCB) were investigated in water methanol (1 : 1, v/v) medium in the presence of perchloric acid. The hydrazones studied were benzaldehyde, propionaldehyde, acetone and acetophenone thiosemicarbazones. The reactions show first‐order kinetics in [NCB], a fractional order dependence in [substrate] and an inverse fractional to inverse first order in [H+]. Addition of benzamide has no significant effect on the rates of oxidations. Variation in the ionic strength of the medium has little effect on the rates of reactions, but a decrease in the dielectric constant of the medium by increasing the methanol concentration in the solvent increases the rates. The rate‐limiting steps were identified in all cases and the rate coefficients of these steps and the related activation parameters were also evaluated. The consistency of the deduced rate laws was checked by recalculating the rate constants as the substrate and H+ concentrations were varied.

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Kinetics and mechanism of oxidation of carbohydrazide by chloramine-T and bromamine-T in aqueous perchloric acid medium

Cited by 2 publications

References 13 publications

Bromamine-T (TsNBrNa): A Biologically Significant, Versatile Bromo-Organic Reagent

Bromamine-T (TsNBrNa): A Biologically Significant, Versatile Bromo-Organic Reagent

Kinetics and mechanisms of oxidation of thiosemicarbazide, its metal complex and hydrazones by N‐chlorobenzamide in water methanol medium

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