cas 64953-82-8, 2-Chloro-1-(4-ethoxyphenyl)ethanone | Articles data ｜lookchem

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64953-82-8

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Kinetics of Oxidation of Ketones by Trichloroisocyanuric Acid in Acid Medium: Anomalous Behaviour of Alkoxyacetophenones
Kinetics of oxidation of aliphatic, aryl aliphatic and cyclic ketones by trichloroisocyanuric acid has been studied in aqueous acetic acid medium in the presence of HClO4.The reaction is acid-catalysed exhibiting first order dependence each in and and zero order dependence in .This supports the acid catalyzed enolisation of ketone as the rate-determining step and reaction between enol and oxidant as the fast step.Alkoxyacetophenones exhibit an anomalous behaviour in that there is first order dependence on the halogenating agent.This has been attributed to the fact that in the case of alkoxyacetophenones the rates of halogenation may be less than the rates of enolisation.The decrease in dielectric constant of the medium slightly enhances the rate of reaction.The ρ? relationship in the case of acetophenones is linear with ρ as -0.2 indicating the simultaneous operation of equilibrium protonation of ketone and deprotonation of conjugate acid.Arrhenius activation parameters have been computed.A plausible mechanism consistent with the experimental results is postulated.
Radhakrishnamurti, P. S.,Rath, Nabeen Kumar
p. 300 - 303
(2007/10/02)

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Chemical Properties

Boiling Point: 316.2 °C at 760 mmHg
Flash Point:136 °C
Density: 1.149 g/cm³
Vapor Pressure: 0.000416mmHg at 25°C
Refractive Index: 1.518
PSA: 26.30000
LogP: 2.50680

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