Kinetics of Oxidation of Indole in High Indole Concentration Range by Bromamine-B in Alkaline Medium Catalysed by Os(VIII)

T. Demappa* and S. Ananda†

Department of Studies in Polymer Science, University of Mysore, Sir. M.V.P.G. Centre, Mandya-571 402, India

Abstract

The kinetics of oxidation of indole (In) in bigh indole concentration
range by sodium N-bromobenzene sulphonamide (BAB) in
alkaline medium in presence of OSO4 catalyst have been investigated
at 30°C. The reaction rate shows a first order dependence
of rate on [BAB]o and [Indole], and inverse first order dependence
of rate on [OH- ] and first order on [OSO4]. Addition of halide ions
and variation of ionic strength and dielectric constant of the medium
do not have any sigtlflcant effect on the reaction rate. Thermodynamic
parameters have been evaluated.

Keywords

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  • Asian J. Chem. /
  •  2000 /
  •  12(4) /
  •  pp 1282-1290