A Novel and Facile Oxidation of D-glucose by N-bromophthalimide in the Presence of Chloro-complex of Ruthenium(III)

Singh, Ajaya Kumar; Sachdev, Neerja; Shrivastava, Alpa; Katre, Yokraj; Singh, Surya Prakash

doi:10.1080/15533174.2010.522664

Cited by 7 publications

(12 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is also obvious from the plot of (-dc/dt) versus [BrO 3 -] ( Table 1, Fig. 1), indicating first order kinetics at lower concentrations and tending to zero order kinetics at its higher concentrations.…”

Section: Kinetic Results and Discussionmentioning

confidence: 56%

“…-dc / dt) of the reaction in each kinetic run was determined by the slope of the tangent drawn at fixed concentration of oxidant, potassium bromate, which is written as [BrO 3 -]*. In the variation of oxidant, BrO 3 -tangent has been drawn at a fixed time.…”

Section: Kinetic Results and Discussionmentioning

confidence: 99%

“…Remaining amount of potassium bromate will liberate an equivalent amount of iodine from potassium iodide solution, which was titrated against a standard solution of sodium thiosulphate using starch as an indicator. The rate of reaction (-dc/dt) was determined by the slope of the tangent drawn at a fixed [BrO 3 -] in each kinetic run. The order of reaction in each reactant was measured with the help of log-log plot of (-dc/dt) versus concentration of the reactants.…”

Section: Kinetic Proceduresmentioning

confidence: 99%

“…The bromate (BrO 3 -) species has been reported as an oxidizing agent in acidic as well as in alkaline medium [18,19]. Earlier it was reported that bromide ion, formed by the reduction of BrO 3 -give rise to molecular bromine which sets parallel oxidation of TA. In order to obviate molecular bromine oxidation and to ensure pure bromate oxidation, mercuric acetate, which is used as bromide ion scavenger [22] was added to the reaction mixture.…”

Section: Introductionmentioning

confidence: 99%

“…The oxidation products depend on the type of oxidant and on the reaction medium. Kinetic studies on the oxidation of tartaric acid with different oxidants such as N-bromophthalimide [1][2][3][4][5][6][7], N-bromoacetamide [8], silver (II) [9], N-bromosuccinimide [10], Cr (VI) in aqueous perchloric acid medium [11], alkaline hexacynoferrate (III) [12], alkaline iodate [13] and chloramine -T [14][15][16] have been reported earlier. Potassium bromate [Br (V)] is known to be a powerful oxidizing agent with redox potentials of 1.44 V in acid medium and 0.61V in alkaline medium.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Kinetics and Mechanism of Aquachlororuthenium (III) Catalyzed Oxidation of Tartaric Acid by Acid Bromate

Singh¹,

Singh²,

Singh³

et al. 2013

TOCATJ

Self Cite

View full text Add to dashboard Cite

Abstract:The kinetics of the oxidation of Ru (III) catalyzed oxidation of tartaric acid by potassium bromate in aqueous perchloric acid medium at constant ionic strength was investigated in the temperature range 303-318 K. The reactions exhibit first order kinetics at low concentration of bromate, tending to zero order at high concentration. . Variation in mercuric acetate concentration, [Hg(OAc)2] and ionic strength of the medium did not bring any significant change on the rate of reaction. The first order rate constant increases with decrease in the dielectric constant of the medium. The values of rate constants observed at four different temperatures were utilized to calculate the activation parameters. Formic acid and carbon dioxide have been identified as main oxidation products of the reaction. A plausible mechanism from the results of kinetic studies, reaction stoichiometry and product analysis has been proposed.

show abstract

Section: Kinetic Results and Discussionmentioning

confidence: 56%

Section: Kinetic Results and Discussionmentioning

confidence: 99%

Section: Kinetic Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Kinetics and Mechanism of Aquachlororuthenium (III) Catalyzed Oxidation of Tartaric Acid by Acid Bromate

Singh¹,

Singh²,

Singh³

et al. 2013

TOCATJ

Self Cite

View full text Add to dashboard Cite

show abstract

Oxidation of d-glucose by N-bromophthalimide in the presence of chlorocomplex of iridium(III): a kinetic and mechanistic study

Singh¹,

Sachdev

Shrivastava³

et al. 2011

Res Chem Intermed

Self Cite

View full text Add to dashboard Cite

The kinetics of Iridium (III) catalyzed oxidation of D-glucose [D-glu] has been studied by N-bromophthalimide [NBP] in the acidic medium (pH 1.3) at 303 K. The reaction followed first-order kinetics with respect to [NBP] from 0.5 9 10 -4 to 4.0 9 10 -4 mol dm -3 . The results indicate the first-order kinetics in [iridium(III)] chloride at lower concentrations from 0.75 9 10 -6 to 5.8 9 10 -6 mol dm -3 tends towards a zero order at its higher concentrations (up to 13.36 9 10 -6 mol dm -3 ). Zero-order kinetics with respect to [D-glu] from 2.0 9 10 -3 to 20.0 9 10 -3 mol dm -3 was observed throughout its variation. A positive effect on the oxidation rate was observed for [Cl -] from 0.2 9 10 -5 to 2.4 9 10 -5 mol dm -3 and the rate of reaction decreased with increase in dielectric constant (decreasing acetic acid from 35 to 15%) of the medium. A negative effect was observed on the reaction rate for [H ? ] from 1.5 9 10 -2 to 12.0 9 10 -2 mol dm -3 . Addition of reduced product of oxidant, i.e., phthalimide from 1.0 9 10 -4 to 8.0 9 10 -4 mol dm -3 did not show a significant effect on the oxidation velocity. Rate of reaction increased with increase in ionic strength from 0.2 9 10 -1 to 4.0 9 10 -1 mol dm -3 of the medium, i.e., increase in [KNO 3 ]; the rate of reaction was increased. From the linear Arrhenius plot of log k 1 versus 1/T, the activation energy (Ea = 50.91 kJ mol -1 ) was calculated. With the help of the energy of activation, parameters such as enthalpy of activation (DH # = 48.39 kJ mol -1 ), entropy of activation (DS # = -321.63 JK mol -1 ), Gibbs free energy of activation (DG # = 145.84 kJ mol -1 ) and frequency factor (Log A = -3.97) were also calculated. A suitable mechanism in conformity with kinetic observations was proposed to explain reaction stoichiometry and product analysis.

show abstract

Oxidative behavior of N-bromophthalimide for organic compounds: a review

Jain¹,

Negi

Singh³

2018

SN Appl. Sci.

View full text Add to dashboard Cite

Organic compounds receive from industries as effluents are highly toxic and hazardous for the environment. Conventional oxidation process for the oxidation of organic compounds through use of N-bromophthalimide (NBP) is one of the significant process for conversion of organic compounds into environmental friendly or less harmful substances. The main scenario of this review is oxidation and kinetics of different organic compounds by NBP with different experimental methods-iodometric and potentiometric along with uncatalyzed, and catalyzed system. In addition to this we also summarize synthesis, properties and reactive species of NBP. Oxidation products obtained by oxidation of various organic compounds by NBP were acetic acid, aldehyde, carbon dioxide, ammonia, cyanide, aldonic acid etc. Present review, first time offers all aspects of NBP as an oxidizing agent for oxidation of organic compounds.

show abstract

A Novel and Facile Oxidation of D-glucose by N-bromophthalimide in the Presence of Chloro-complex of Ruthenium(III)

Cited by 7 publications

References 17 publications

Kinetics and Mechanism of Aquachlororuthenium (III) Catalyzed Oxidation of Tartaric Acid by Acid Bromate

Kinetics and Mechanism of Aquachlororuthenium (III) Catalyzed Oxidation of Tartaric Acid by Acid Bromate

Oxidation of d-glucose by N-bromophthalimide in the presence of chlorocomplex of iridium(III): a kinetic and mechanistic study

Oxidative behavior of N-bromophthalimide for organic compounds: a review

Contact Info

Product

Resources

About