Synthesis, characterization and electrochemical properties of some biologically important indole-based-sulfonamide
Mohamed Ibrahim1, Muhammed Taha1, Noor B Almandil1
1Department of Clinical Pharmacy Research, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441 Saudi Arabia.
Abstract:
A new series of indole-based-sulfonamide derivatives (A1-A8) was synthesized by treating 5-fluoro-1H-indole-3-carbohydrazide with different aryl-sulfonyl chloride in the presence of pyridine. All synthesized derivatives (A1-A8) were characterized by different analytical methods. The electrochemical behavior of these compounds (A1-A8) was investigated in detail using cyclic voltammetry (CV) and square wave voltammetry (SWV) at the pencil graphite electrode (PGE). In the present study, the redox behavior of all derivatives varies due to the nature of substitutions in the indole sulfonamide moiety. Various fundamental electrochemical parameters, including the standard heterogeneous rate constants (ks), and the electroactive surface coverage (Г) were calculated from the obtained CVs. The obtained results shed light on the understanding of structure-activity relationships of this class of compounds.
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