Oxidation of aliphatic aldehydes by benzimidazolium fluorochromate in non aqueous medium – A kinetic and mechanistic study

Asghar, Basim H.; Mansoor, S. Sheik; Hussain, Ashiq; Malik, V. Saleem; Aswin, K.; Sudhan, S.P.N.

doi:10.1016/j.arabjc.2013.07.043

Cited by 8 publications

(6 citation statements)

References 29 publications

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“…Benzimidazolium fluorochromate was reported to be a mild, stable and selective oxidant. A perusal of the literature showed that there seems to be a very few reports using BIFC [25][26][27][28][29][30] . Literature survey has also unveiled the fact that the study of oxidation of heterocyclic aldehyde like pyridine-2-aldehyde in aqueous acetic acid medium is lacking.…”

Section: Research Articlementioning

confidence: 99%

“…Literature survey has also unveiled the fact that the study of oxidation of heterocyclic aldehyde like pyridine-2-aldehyde in aqueous acetic acid medium is lacking. As a part of our investigation on the mechanistic aspects of BIFC oxidations [27][28][29][30] , we report the results of BIFC oxidation of pyridine-2-aldehyde in aqueous acetic acid medium. The present investigation is an effort to probe into the kinetic and mechanistic aspects of BIFC oxidation of pyridine-2aldehyde in aqueous acetic acid medium in various solvent compositions and to determine thermodynamic parameters.…”

Section: Research Articlementioning

confidence: 99%

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Studies on the Kinetics of Benzimidazolium Fluorochromate Oxidation of Pyridine-2-aldehyde in Aqueous Acetic Acid Medium

2015

Chem Sci Trans

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The oxidation of pyridine-2-aldehyde (2-PyA) by benzimidazolium fluorochromate (BIFC) has been studied in aqueous acetic acid medium. The oxidation leads to the formation of the pyridine-2-carboxylic acid. The reaction is first order with respect to [BIFC], [2-PyA] and [H + ] and the reaction is catalyzed by hydrogen ions. The reaction mixture failed to induce the polymerization of added acrylonitrile. The reaction has been studied in different percentage of acetic acid-water mixture. The decrease in dielectric constant of the medium increases the rate of the reaction or low dielectric constant of the medium favours the reactivity. A suitable mechanism has been proposed.

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Section: Research Articlementioning

confidence: 99%

Section: Research Articlementioning

confidence: 99%

Studies on the Kinetics of Benzimidazolium Fluorochromate Oxidation of Pyridine-2-aldehyde in Aqueous Acetic Acid Medium

2015

Chem Sci Trans

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“…Benzimidazolium fluorochromate is also one such oxidant developed recently [8][9][10][11][12][13] . It is a more efficient and stronger oxidizing agent.…”

Section: Research Articlementioning

confidence: 99%

Studies on the Kinetics of Oxidation of 4-Oxo-4-phenylbutanoic Acid by Benzimidazolium Fluorochromate in the Presence of Oxalic Acid in Acetic Acid-Water Medium

2015

Chem Sci Trans

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Kinetics of oxidation of 4-oxo-4-phenyl butanoic acid (4-oxo acid) by benzimidazolium fluorochromate (BIFC) in acetic acid-water medium with perchloric acid in the presence of oxalic acid (OA) has been studied. The reaction is first order each in [BIFC], [4-oxo acid] and [H + ]. The reaction has been found to be catalyzed by H + ions. The reaction rate increased remarkably with the increase in the proportion of acetic acid in the solvent medium. Various thermodynamic parameters have been determined at different acetic acid-water composition. A suitable mechanism has been proposed.

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“…There are several investigations on the oxidation of aldehydes using various oxidants. [6][7][8][9][10][11][12][13] However, there are few reports on the kinetics of acetaldehyde oxidation. [14][15][16] Literature survey revealed no report on the kinetics of acetaldehyde oxidation by KMnO4.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of Acidic Mn(VII) Oxidation of Acetaldehyde in Aqueous and 5% Ethanol-Water Solvents

Felix¹,

Ajibade²

2018

AJCR

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Kinetics of acidic Mn(VII) oxidation of acetaldehyde in aqueous and 5% ethanol-water solvents were studied via pseudo-first order condition at λmax 525nm. The reaction showed a first order dependence with respect to acetaldehyde concentration, [Mn(VII)], fractional order to [H+] and independent on the ionic strength of the solution. Michaelis-Menten plot showed the existence of an intermediate complex and dependence on hydrogen ion is in the form kobs= a + b[H+]. However, oxidation reaction is generally faster in non-aqueous solvent than in aqueous solvent. Product analysis revealed the presence of carboxylic acid and stoichiometric study suggests the consumption of 2 moles of MnO4-by 3 moles of acetaldehyde in both solvents. Thermodynamic parameters of activation were obtained from Arrhenius and Erying's equations. A plausible associative mechanism in agreement with kinetic and spectroscopic results was proposed.

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Oxidation of aliphatic aldehydes by benzimidazolium fluorochromate in non aqueous medium – A kinetic and mechanistic study

Cited by 8 publications

References 29 publications

Studies on the Kinetics of Benzimidazolium Fluorochromate Oxidation of Pyridine-2-aldehyde in Aqueous Acetic Acid Medium

Studies on the Kinetics of Benzimidazolium Fluorochromate Oxidation of Pyridine-2-aldehyde in Aqueous Acetic Acid Medium

Studies on the Kinetics of Oxidation of 4-Oxo-4-phenylbutanoic Acid by Benzimidazolium Fluorochromate in the Presence of Oxalic Acid in Acetic Acid-Water Medium

Kinetics of Acidic Mn(VII) Oxidation of Acetaldehyde in Aqueous and 5% Ethanol-Water Solvents

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