Abstract

Willayat Bashir, V. T. Borkar and V. T. Dangat*

DOI : http://dx.doi.org/10.13005/ojc/310474

The nucleophilicity of the nucleobase cytosine has been investigated by polarographic studies complemented by fast reaction kinetic data .Increasing half-wave potentials with pH are observed for the bio-molecule using the dropping mercury electrode (DME).The bromination of the nucleobase in aqueous solution is found to be a rapid reaction necessitating a special technique to follow the kinetics .Herein we have adopted the hydrodynamic voltammetry technique. The reaction is found to be of the second order, the specific reaction rate of which increases with pH .The complementary data in the two–pronged study reveals the reactivity of the nucleobase in this aromatic electrophilic substitution reaction in aqueous medium on a quantitative scaffold.

Cytosine, RPE, SCE, Polarography, Hydrodynamic Voltammetry

[ View HTML Full Text]