Electrosynthesis of biologically active dicycloalkyl di- and trisulfides involving an H2S—S8 redox system
作者:N. T. Berberova、I. V. Smolyaninov、E. V. Shinkar、V. V. Kuzmin、D. B. Sediki、A. V. Shevtsova
DOI:10.1007/s11172-018-2044-4
日期:2018.1
S8 under the anodic (cathodic) activation of hydrogen sulfide. In dichloromethane, the electrochemical activation of H2S in the presence of sulfur can generate sulfur-centered radical intermediates that react with cycloalkanes at room temperature. The current yield of di- and trisulfides depends on the method of redox activation of hydrogen sulfide, the concentration of sulfur, and the time of electrosynthesis
The reaction of various sulfur reagents (S8, H2S, Na2S, NaHS) with cyclohexane under GifIII, GoAggII and GoAggIII conditions affords the usual oxidation products in competition with cyclohexyl di- and poly-sulfide formation. Other cyclic hydrocarbons behave similary. The sulfation reactions are considered to be biomimetic for the enzymes N synthase and biotin synthase.
Redox mediators of hydrogen sulfide oxidation in reactions with cycloalkanes
作者:N. T. Berberova、E. V. Shinkar’、I. V. Smolyaninov、K. P. Pashchenko
DOI:10.1134/s0012500815120058
日期:2015.12
An indirect electrochemical method for thiolation of cycloalkanes C-5-C-7 has been suggested. The method is based on a new approach to activation of hydrogen sulfide by redox mediators.
Anodic activation of hydrogen sulfide in reaction with cyclopentane
作者:N. T. Berberova、E. V. Shinkar’、I. V. Smolyaninov、V. F. Abdulaeva