Oxidation of Alcohols by Quinolinium Dichromate.a Kinetic Study

摘要

The oxidation of alcohols (primary,secondary and allylic) by quinolinium dichromate,in acid medium,gave the corresponding carbonyl products.The dependence of rate coefficients on acidity,and kinetic isotope effects support a mechanism in which the rate-determining step involved the decomposition of a cyclic chromate ester in an electrocyclic manner involving six elextrons.Being a Huckel type system (4n+2),this was an allowed process.