Electron Spin Resonance and Cyclic Voltammetry Studies of Nitrofurane and Nitrothiophene Analogues of Nifurtimox

Abstract
The electron spin resonance (ESR) of radicals obtained by electrolytic reduction of 4-[2-(3,4-Dimethoxiphenyl)ethyl]-1-(5-nitrofurfurylidine)semicarbazide and 4-[2-(3,4-Dimethoxyphenyl)ethyl]-1-(5-nitrothienilydene)semicarbazide were measured in DMSO. The electrochemistry of these compounds was studied in DMSO, DMF and ACN using cyclic voltammetry.