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Structure-Reactivity Correlation of Thiophene and Thiophene-2-Sulfonic Acid by Investigation of Rapid Kinetics of Bromination in Aqueous Medium

Author Affiliations

  • 1Nowrosjee Wadia College, Pune, affiliated to the University of Pune, Maharashtra, INDIA

Res.J.chem.sci., Volume 4, Issue (12), Pages 48-51, December,18 (2014)


The structure-reactivity correlation of thiophene and thiophene-2-sulfonic acid by investigation of the rapid kinetics of bromination in aqueous medium has been carried out employing hydrodynamic voltammetry. The velocity constant for the bromination of thiophene-2-sulfonic acid determined was 106 M-1 S-1 at 24.5oC. This value on comparison with that reported under identical conditions for the bromination of thiophene, 526.5 M-1 s-1 provided a quantitative assessment for the structure related restraints on the reactivity of the two heterocycles under consideration.


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