Effect of Cyclodextrin on the Oxidation of Acetophenone and Substituted Acetophenones by N-Bromophthalimide in Aqueous Acetic Acid Medium
Corresponding Author(s) : T.D. Rakhakrishnan Nair
Asian Journal of Chemistry,
Vol. 9 No. 2 (1997): Vol 9 Issue 2
Abstract
The kinetics of oxidation of acetophenone and substituted
acetophenones by N-bromophthalimide (NBP) has been investigated
in aqueous acetic acid medium in the presence of mercuric
acetate for a temperature range of 308–323 K. The reaction is zero
order in oxidant and first order in substrate. Increase in [H+] increases
the rate with a fractional order dependence. No primary salt
effect was observed whereas added phthalimide shows retarding
effect. The thermodynamic parameters were evaluated. Catalytic
effect was observed with cyclodextrins, with larger magnitude for
the α-cyclodextrins.
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