Abstract

Abstract Electrochemistry/mass spectrometry (EC/MS) using two different types of electrolytic cells was employed for the systematic mechanistic study of colchicine's reduction, both in aqueous and non-aqueous media. In aqueous media, at around − 1 V vs. Ag/AgCl, colchicine suffers a single-electron reduction to a transient anion radical, which after a follow-up protonation leads to a neutral free radical (E r C i mechanism). Depending on the experimental conditions, the latter undergoes some dimerization. At more negative potentials (− 1.4 V vs. Ag/AgCl) and pH

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