Retardation of Cerium(IV)-Initiated Polymerization of Acrylonitrile by Chalcone

Satapathy, Rashmirekha; Patnaik, Sachindra N.; Misra, Basanta K.; Rout, Swoyam P.; Rout, M. K.

doi:10.1080/00222337908066602

Cited by 13 publications

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References 8 publications

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“…In the present investigations the kinetic and mechanistic study of the oxidation of dibenzalacetone with oxalic acid was studied in aqueous acetic acid medium. Chalcones are oxidized by different oxidizing agents and in all these reactions either =C=O instead of =C=O= is attacked by various oxidants that have been used for oxidation of chalcones [17][18][19][20][21][22][23] The present work reports the Cooxidation of dibenzalacetone with oxalic acid in aqueous acetic acid medium and evaluates the reaction constants and Mechanistic aspects are also discussed..…”

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confidence: 99%

Cooxidation of Dibenzalacetone with Oxalic Acid by Pyrazinium Chlorochromate

Periyasamy

Ponmadasamy

2020

ILCPA

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Oxidation of dibenzalacetone with pyrazinium chlorochromate in presence of oxalic acid has been studied at 313 K. Various reaction parameters such as effect of varying oxidant, substrate, Hydrogen ion concentration, catalyst, solvent composition, ionic strength, effect of Mn2+, effect of Al3+ and effect of temperature were studied to determine the kinetics of the reaction. Our study revealed that the reaction followed first order dependence with respect to oxidant and catalyst. The reaction followed fractional order kinetics with respect to substrate and H+. Increase in ionic strength was found to have no effect on the reaction rate and decrease in the dielectric constant of the medium decreases the reaction rate. Increase in the concentration of manganous sulphate retarded the reaction rate which confirmed the two-electron transfer involved in the mechanism. There was no possibility of free radical mechanism, which was confirmed by the addition of acrylonitrile shows no significant effect on the reaction rate indicating the non-involvement of free radical reaction.. Based on the experimental observations a mechanism and rate law has been derived. Moreover, the oxidation product was found to be chalcone epoxide, which was characterized by IR spectrum.

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Section: Introductionmentioning

confidence: 99%

Cooxidation of Dibenzalacetone with Oxalic Acid by Pyrazinium Chlorochromate

Periyasamy

Ponmadasamy

2020

ILCPA

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Retardation of V⁵⁺‐thiourea initiated polymerization of acrylonitrile by phenol

Mohanty

Misra

Singh

1986

Angew. Makromol. Chem.

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Termination of CE(IV)‐Diacetone Alcohol Redox System Initiated Polymerization of Acrylonitrile by V(V): A Kinetic Study

Srinivas

Rao

Sethuram

et al. 1984

Bulletin des Soc Chimique

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Polymerizationof acrylonitrile (AN) initiated by Ce(1V)-diacetone alcohol (DAA) redox system was studied in the presence of V W . Rate of polymerization was decreased considerably by the additionof small amounts of V ( W . Polymerization was not observed either by V(V) alone or by V(V)-DAA redox system. Under the experimental conditions orders with respect to ICe(IV)l, IDAAl and [AN] were found to be 0.5, 0.5 and 1.5 in the absence of V(V) and these changed to

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Retardation of Cerium(IV)-Initiated Polymerization of Acrylonitrile by Chalcone

Cited by 13 publications

References 8 publications

Cooxidation of Dibenzalacetone with Oxalic Acid by Pyrazinium Chlorochromate

Cooxidation of Dibenzalacetone with Oxalic Acid by Pyrazinium Chlorochromate

Retardation of V⁵⁺‐thiourea initiated polymerization of acrylonitrile by phenol

Termination of CE(IV)‐Diacetone Alcohol Redox System Initiated Polymerization of Acrylonitrile by V(V): A Kinetic Study

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Retardation of Cerium(IV)-Initiated Polymerization of Acrylonitrile by Chalcone

Cited by 13 publications

References 8 publications

Cooxidation of Dibenzalacetone with Oxalic Acid by Pyrazinium Chlorochromate

Cooxidation of Dibenzalacetone with Oxalic Acid by Pyrazinium Chlorochromate

Retardation of V5+‐thiourea initiated polymerization of acrylonitrile by phenol

Termination of CE(IV)‐Diacetone Alcohol Redox System Initiated Polymerization of Acrylonitrile by V(V): A Kinetic Study

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Retardation of V⁵⁺‐thiourea initiated polymerization of acrylonitrile by phenol