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Oxidation of substituted benzaldehydes by quinolinium chlorochromate: A structure and solvent dependent kinetic study

✍ Scribed by G. Fatima Jeyanthi; K. P. Elango

Book ID
102443247
Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
72 KB
Volume
35
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

The kinetics of oxidation of several para‐substituted benzaldehydes by quinolinium chlorochromate was studied under pseudo‐first‐order conditions in different (hydrogen bond donor and hydrogen bond acceptor) neat organic solvents. The operation of nonspecific and specific solvent–solvent–solute interactions was explored by correlating the rate data with solvent parameters through correlation analysis. Both electron‐releasing and electron‐withdrawing substituents enhanced the rate and the Hammett plot showed a break in the reactivity order indicating applicability of dual mechanism. An explanation in conformity with structure and solvent effects on reactivity has been proposed. © 2003 Wiley Periodicals, Inc. Int J Chem Kinet 35: 154–158, 2003

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