Studien zum Vorgang der Wasserstoffübertragung, 66 [1]. Untersuchungen zum Mechanismus der elektroreduktiven Spaltung von Aryldisulfonsäurederivaten / Studies to the Occurrence of Hydrogen Transfer, 66 [1]. Investigation of the Mechanism of the Electroreductive Cleavage of Aryldisulfonyl-Derivatives

Abstract

Aryl-mono- and -disulfonic acid derivatives (Ar(SO2Y)n n= 1,2; Y = OR, NR, R′) were converted to aryl sulfinic acids by electroreductive fission according to the steps shown in Scheme (1). Determination of the electron-transfer during the electroreduction (Ilkovič, n < 1) indicates the irreversibility of the reaction sequence given. Cyclovoltammetric measurements on benzene-1,4-disulfonicacid-di-n-hexylester indicate that the first reduction step (the formation of the radical anion A or B) is reversible.