A. Rastelli, R. Andreoli, G. Gavioli
May 10, 1978
Citations
0
Influential Citations
11
Citations
Journal
Journal of Electroanalytical Chemistry
Abstract
Abstract The polarographic study of a series of N-substituted benzenesulphonamides and their p-amino derivatives, in aprotic and protic media (CH3CN, dimethylformamide, C2H5OH), has shown that the electrochemical reduction of these compounds involves the S−N bond cleavage and follows the mechanism proposed by Cottrell and Mann. It has also been shown that the effect of the substituents on the amidic nitrogen on the half-wave potential is independent of the protonicity of the solvent used, so the E1/2 value can be regarded as a good structural index. From the polarographic data, a series of polar inductive substituent constants is obtained, the validity of which has been proved also by comparison with other experimental physicochemical parameters of these compounds related to their molecular structure.