• Sonu Saraswat

      Articles written in Journal of Chemical Sciences

    • Kinetics and mechanism of oxidation of aliphatic primary alcohols by quinolinium bromochromate

      Sonu Saraswat Vinita Sharma K K Banerji

      More Details Abstract Fulltext PDF

      Oxidation of nine aliphatic primary alcohols by quinolinium bromochromate (QBC) in dimethylsulphoxide leads to the formation of the corresponding aldehydes. The reaction is first order with respect to both QBC and the alcohol. The reaction is catalysed by hydrogen ions. The hydrogen-ion dependence has the form:kobs = a + b[H+]. The oxidation of [1,1-2H2]ethanol (MeCD2OH) exhibits a substantial primary kinetic isotope effect. The reaction has been studied in nineteen different organic solvents. The solvent effect was analysed using Taft’s and Swain’s multiparametric equations. The rate of oxidation is susceptible to both polar and steric effects of the substituents. A suitable mechanism has been proposed.

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