Radical anions containing the dioxidated 1,2,5-thiadiazole heterocycle. Part II

摘要

Radical anions from several 3,4-aryl-disubstituted derivatives of 1,2,5-thiadiazole 1,1-dioxide were accumulated through chemical reduction of the substrates in aprotic solvents. The radical anions were characterized by electron spin resonance and cyclic voltammetry. DFT theoretical calculations were also performed for the 3,4-diphenyl derivative. The course of the reductions was followed using cyclic voltammetry. Uncommon reductants, such as amides, were found to be effective under certain conditions.