Kinetics and mechanism of oxidation of some disaccharides—melibiose, cellobiose, lactose and maltose—by hexacyanoferrate (III) in alkaline medium

Srivastava, R. Κ.; Nath, Narendra; Singh, M. P.

doi:10.1016/0040-4020(67)85069-5

Cited by 10 publications

(4 citation statements)

References 14 publications

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“…The presence of formaldehyde as the oxidation product in case of fructose was identified by forming its 2,4‐dinitrophenyl‐hydrazone and comparing it with an authentic sample 16. The results are in agreement with the earlier reported oxidation products of reducing sugars 17–19.…”

Section: Resultssupporting

confidence: 93%

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Inhibition effect of {surfactant–substrate} aggregation on the rate of oxidation of reducing sugars by alkaline hexacyanoferrate(III)

Shukla

Upadhyay

2007

Int J of Chemical Kinetics

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The effect of cationic (cetyltrimethylammonium bromide, CTAB), anionic (sodium lauryl sulfate, NaLS), and nonionic (Brij-35) surfactants on the rate of oxidation of some reducing sugars (xylose, glucose, and fructose) by alkaline hexacyanoferrate(III) has been studied in the temperature range from 35 to 50 • C. The rate of oxidation is strongly inhibited in the presence of surfactant. The inhibition effect of surfactant on the rate of reaction has been observed below critical micelle concentration (CMC) of CTAB. In case of NaLS and Brij-35, the inhibition effect was above CMC, at which the surfactant abruptly associates to form micelle. The kinetic data have been accounted for by the combination of surfactant molecule(s) with a substrate molecule in case of CTAB and distribution of substrate into micellar and aqueous pseudophase in case of NaLS and Brij-35. The binding parameters (binding constants, partition coefficients, and free-energy transfer from water to micelle) in case of NaLS and Brij-35 have been evaluated with the help of Menger and Portnoy model reported for micellar inhibition.

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Section: Resultssupporting

confidence: 93%

“…The kinetics of oxidation of the reducing sugars by alkaline hexacyanoferrate(III) in the absence of the surfactant is reported in the literature 17,18. The reaction followed a first‐order dependence of rate with respect to each OH − and reducing sugars and a zero‐order dependence of rate with respect to an oxidant.…”

Section: Resultsmentioning

confidence: 99%

Inhibition effect of {surfactant–substrate} aggregation on the rate of oxidation of reducing sugars by alkaline hexacyanoferrate(III)

Shukla

Upadhyay

2007

Int J of Chemical Kinetics

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“…Energy is stored in the complex molecular structure of the carbohydrates [1][2][3][4]. The kinetics of oxidation of sugars has been the subject of extensive research in recent years [5][6][7][8][9][10]. The versatile nature of N-halogeno compounds is due to their ability to act as sources of halonium cations, hypohalite species, and nitrogen anions, which act as both bases and nucleophiles.…”

Section: Introductionmentioning

confidence: 99%

Kinetic study of oxidation of galactose by N-bromo phthalimide in the presence of cationic micelle in acidic medium

Katre¹,

Nayak²,

Sharma³

et al. 2011

Res Chem Intermed

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The kinetics of micellar catalyzed oxidation of galactose by N-bromophthalimide was studied in the presence of acidic medium at 308 K. The oxidation reaction exhibits first-order kinetics with respect to oxidant (N-bromophthalimide), fractional order with respect to substrate (galactose) and positive fractional order with respect to HClO 4 on the rate of reaction. The rate of the reaction increased with decreasing the dielectric constant of the medium. With a progressive increase in the concentration of CTAB, the rate of reaction increased and after reaching peak k obs , decreased at higher concentrations of CTAB. There catalytic roles are best explained by Berezin's model. The influence of salts on the reaction rate was also studied. The various activation parameters have been calculated. The rate constant and binding constant with the surfactant have also been evaluated. A suitable mechanism consistent with the experimental findings has been proposed.

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“…The kinetics of oxidation of sugars has been the most popular and interesting research in recent years [27][28][29][30].…”

Section: Role Of Ru(iii) As Inhibitor In Oxidation Of Arabinose and Rmentioning

confidence: 99%

Role of Ru(III) as Inhibitor in Oxidation of Arabinose and Ribose by [Cu(bipy)2]2+ in Alkaline Medium: Spectrophotometric and Kinetic Studies

Behera¹,

Behera²

2017

Asian J. Chem.

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The kinetics and mechanism of oxidation of arabinose and ribose by [Cu(bipy) There is a substantial decrease in the pseudo first order rate constant with increase in the concentration of RuCl3, indicating the role of RuCl3 as an inhibitor. The reaction also shows slight decrease in rate by increasing dielectric constant of the medium. Ionic strength of the medium and [Cl -] have no effect on the rate of oxidation. The activation parameters for the rate determining step have been calculated. Based on kinetic data and spectrophotometric evidences, a suitable mechanism is proposed.

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Kinetics and mechanism of oxidation of some disaccharides—melibiose, cellobiose, lactose and maltose—by hexacyanoferrate (III) in alkaline medium

Cited by 10 publications

References 14 publications

Inhibition effect of {surfactant–substrate} aggregation on the rate of oxidation of reducing sugars by alkaline hexacyanoferrate(III)

Inhibition effect of {surfactant–substrate} aggregation on the rate of oxidation of reducing sugars by alkaline hexacyanoferrate(III)

Kinetic study of oxidation of galactose by N-bromo phthalimide in the presence of cationic micelle in acidic medium

Role of Ru(III) as Inhibitor in Oxidation of Arabinose and Ribose by [Cu(bipy)2]2+ in Alkaline Medium: Spectrophotometric and Kinetic Studies

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