The effect of solvent on the kinetics of the oxidation of benzaldehydes by quinolinium chlorochromate in aqueous organic solvent media

Autor: Jeyanthi Fatima G., Vijayakiiinarand G., Elango K.P.
Jazyk: angličtina
Rok vydání: 2002
Předmět:
Zdroj: Journal of the Serbian Chemical Society, Vol 67, Iss 12, Pp 803-808 (2002)
Druh dokumentu: article
ISSN: 0352-5139
1820-7421
DOI: 10.2298/JSC0212803J
Popis: The kinetics of the oxidation of benzaldehyde and para-substituted benzaldehydes by quinolinium chlorochromate in water-dimethylformamide mixtures has been studied under pseudo-first-order conditions at 25±0.2ºC. The operation of non-specific and specific solvent-solute interactions was explored by correlating the rate data with solvent parameters through a correlation analysis technique. Both electron-releasing and electron-withdrawing substitutents enhance the rate of oxidation and the Hammett plot shows a break in the reactivity order indicating the applicability of a dual mechanism.
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