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Gangwani, Hemlata; Sharma, Pradeep K.; Banerji, Kalyan K.

doi:10.1023/a:1005672505310

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…The solutions of di-thiodimalic and di-thiodilactic acid are prepared by reported method. 10 This method provides almost 99% pure acids. Solutions of these acids are prepared at the time of experiments in DMSO and the standardization was done iodimetrically.…”

Section: Methodsmentioning

confidence: 99%

“…Solutions of these acids are prepared at the time of experiments in DMSO and the standardization was done iodimetrically. [10][11] IDC is synthesized by the method 5 available in the literature and iodometric method was used to check its purity. Usual methods 12 are used to purify the other chemicals.…”

Section: Methodsmentioning

confidence: 99%

“…The polarity of the solvents are represented by (A+ B). Rates of various solvent are subjected to analysis with the help of above equation (10), and with separate expressions of A & B and with (A.+B.) also.…”

Section: Rate Lawsmentioning

confidence: 99%

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Oxidation Kinetics and Mechanistic Studies of Thioacids by Imidazolium Dichromate

Kalla¹,

Kumar²,

Choudhary³

et al. 2021

RJC

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We have studied three thioacids(TA) namely; thio-glycollic(TGA), thio-lactic(TLA) and thio-malic(TMA) acid by imidazoliumdichromate (IDC) in dimethyl-sulphoxide (DMSO). Oxidation of these thio-acids leads to the formation of di-sulphide di-mmers. The reaction is having a unit order with the IDC. A fractional-order reaction was found w.r.t. TA. Test for free radical was not observed in this reaction. The influence of acidity was observed, which indicated the increase in the rate by the addition of acid. The study of oxidation of TLA was done in various nonaqueous media, and the influence of solvent media was examined by using some multi-parametric equation models. We postulate a mechanism in which a thio-eater is formed, which is decomposing in the rate-determining slow step.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Oxidation Kinetics and Mechanistic Studies of Thioacids by Imidazolium Dichromate

Kalla¹,

Kumar²,

Choudhary³

et al. 2021

RJC

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“…2 We have initiated a study of kinetics and mechanism of oxidation reactions of HABR and a few reports have emanated from our laboratory. [3][4][5][6] In this paper, we report the kinetics and mechanism of the oxidation of benzyl alcohol and 33 monosubstituted benzyl alcohols by HABR in glacial acetic acid. The major emphasis of this investigation is to correlate the structure and reactivity in this oxidation.…”

mentioning

confidence: 99%

Correlation Analysis of Reactivity in the Oxidation of Substituted Benzyl Alcohols by Hexamethylenetetramine-Bromine

Goyal

Kothari

2002

Journal of Chemical Research

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Kinetics and mechanism of the oxidation of substituted benzylamines by hexamethylenetetramine‐bromine

Dubey

Kothari

Banerji

2001

J of Physical Organic Chem

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The oxidation of substituted benzylamines by hexamethylenetetramine‐bromine (HABR) to the corresponding aldimines is first order with respect to each the amine and HABR. It is proposed that HABR itself is the reactive oxidizing species. The oxidation of deuterated benzylamine (PhCD2NH2) indicated a substantial kinetic isotope effect (kH/kD = 5.60 at 293 K). This confirmed the cleavage of an α‐C—H bond in the rate‐determining step. Correlation analyses of the rates of oxidation of 20 monosubstituted benzylamines were performed with various single‐ and multi‐parametric equations. The rates of the oxidation showed excellent correlations in terms of the Yukawa–Tsuno and Brown equations. The polar reaction constants were negative. The oxidation exhibited extensive cross‐conjugation, in the transition state, between the electron‐donating substituents and the reaction centre. A mechanism involving a hydride ion transfer from the amine to HABR, in the rate‐determining step, is proposed. Copyright © 2001 John Wiley & Sons, Ltd.

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Cited by 4 publications

References 3 publications

Oxidation Kinetics and Mechanistic Studies of Thioacids by Imidazolium Dichromate

Oxidation Kinetics and Mechanistic Studies of Thioacids by Imidazolium Dichromate

Correlation Analysis of Reactivity in the Oxidation of Substituted Benzyl Alcohols by Hexamethylenetetramine-Bromine

Kinetics and mechanism of the oxidation of substituted benzylamines by hexamethylenetetramine‐bromine

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