Heterogeneous and homogeneous redox catalyzed reduction of some sulfilimines was written by Griggio, L.;Severin, M. G.. And the article was included in Journal of Electroanalytical Chemistry and Interfacial Electrochemistry in 1987.SDS of cas: 322-46-3 This article mentions the following:
The homogeneous and electrode 2-electron reduction of some sulfonylsulfilimines were investigated in order to obtain more quant. kinetic and thermodn. information. The 2 processes were analyzed on the basis of homogeneous redox catalysis and voltammetric results, resp. Both reactions were shown, in most cases, to be controlled by the 1st endergonic electron uptake. The kinetic data for the process were interpreted on the basis of simple theories for electron-transfer reactions, allowing intrinsic thermodn. and activation parameters of the charge-transfer steps to be estimated The results were found to be more consistent with the hypothesis of a simple outer-sphere electron transfer followed by a fast 1st-order reaction rather than with a concerted bond breaking-charge transfer step. No relevant differences were observed owing to the replacement of Et with Ph groups in the sulfilimine moiety, the substitution effect being apparent only from a thermodn. point of view. On the contrary, the introduction of a CN group in the sulfonyl moiety increased sensibly the stability of the intermediate radical anion. This caused the electrode process kinetics to be partially dependent on the radical anion decay, allowing the quant. evaluation of its lifetime. In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3SDS of cas: 322-46-3).
Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazinesare six-membered aromatic heterocyclic organic compounds with two nitrogen atoms at 1,4-positions. Pyrazine is a weaker base (pKb = 13.4) than pyridine (pKb = 8.8), pyrimidine (pKb = 12.7). A number of pyrazine-based derivatives were used as dyes or fluorescent probes.SDS of cas: 322-46-3