Abstract

K. Anbarasu and K. K. Ilavenil*

DOI : http://dx.doi.org/10.13005/ojc/350156

The kinetics of oxidation of allyl, crotonyl, styryl carbinol by pyrazinium chlorochromate (PzCC) has been investigated in 60% acetic acid medium. The order was found to be first order with respect to [oxidant], [substrate] and [H^+.]. The rate of the oxidant decreased with increase in [PzCC] and increased with increase in the percentage of Acetic acid. The addition of sodium perchlorate did not show any change in rate constant.Based on the kinetic results, the mechanism between unsaturated alcohol and chromium (VI) oxidant is proposed. The reactivity of unsaturated alcohols was observed to be Allyl alcohol< Crotonyl alcohol< Styryl carbinol.

Mechanism; Kinetics; Oxidation; Pyrazinium Chlorochromate; Sodium Perchlorate; Unsaturated Alcohols

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