Kinetics and mechanism of oxidation of 1,3-butylene glycol by diperiodatocuprate (III) complex in alkaline medium

The kinetics of oxidation of 1,3-butylene glycol by diperiodatocuprater(III)(DPC)in alkaline medium have been studied by spectrophotometry in the range of 298.2-313.2K. It is shown that the reaction was first order with respect to each reductant and Cu (III) , and reaction rates decrease with increase in [IO4 -] and increase in [OH -]. A plausible mechanism of reaction involving a pre-equilibrium between DPC and [Cu(OH)4]- was proposed, which could be applied to explain all experimental phenomena, and the activation parameters of the rate-determining step have been also calculated. Copyright CJI.