OXIDATION OF D-FRUCTOSE WITH VANADIUM(V): A KINETIC APPROACH

Article abstract of DOI:10.1016/0008-6215(85)85105-3

The kinetics of the oxidation of D-fructose with vanadium(V) in perchloric acid have been studied.The reaction is of first order with respect to the , but the values of the rate constant increase slightly with increasing .In the range from 0.002-0.02M V(V), the inverse of the second-order rate constant is linearly related to the inverse of .Sodium hydrogensulfate and perchlorate accelerate the reaction, the effect of the former salt being greater.At a constant +> and ionic strength, the reaction is of first order with respect to ->.At constant ionic strenghth, the reaction is of third order with respect to +>.The activation parameters have been determined.The data obtained have been compared with those for simpler mino- and poly-hydric alcohols.A possible three-step mechanism involving C-H bond fission and yielding glucosones as primary products has been suggested.