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Kinetics and mechanism of the oxidation of some cyclic and acyclic ketones by dodecatungstocobaltate(III)—A comparative study

✍ Scribed by Mala Gupta; Swapan K. Saha; Pradyot Banerjee

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
601 KB
Volume
22
Category
Article
ISSN
0538-8066

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✦ Synopsis

The kinetics of oxidation of cyclohexanone(chxn), a-butanone(but), and 1,3-dihydroxy-2-propanone (dhp) have been investigated in aqueous acidic media. A first-order dependence in complex is obtained at high acid and low oxidant concentration for these ketones. However, a zero-order rate prevails at high oxidant and low acid concentration, and this rate has been shown to be the acid catalyzed enolization rate of the ketone. A general rate expression has been derived to explain these behaviors and plausible mechanism has been offered by assuming the enol as the reactive species.

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