Electrochemical Sulfonylation of 4-tert-Butylcatechol in the Presence of N,N''-dimethylamino ethanthiol : Kinetic Study by Digital Simulation of Cyclic Voltammograms

Electrochemical oxidation of 4-tert-butylcatechols (1) has been studied in thepresence of n,n'-dimethylamino ethanthiol (3) as nucleophile in aqueous solution, usingcyclic voltammetry and controlled-potential coulometry. the results indicate thequinone derived from the oxidation of 4-tert-butylcatechols (1) participates in a michaeladdition reaction with n,n'-dimethylamino ethanthiol (3) to form the correspondingarylsulfonylbenzenediol 4 as the final product. based on an ec mechanism, theobserved homogeneous rate constants of reaction of some catechol derivatives and 3were estimated by comparison the experimental cyclic voltammograms with the digitalsimulated results.