Initiation of the reaction between hydrogen sulfide and aliphatic, aromatic, and heteroaromatic hydrocarbons in acetonitrile using the binary system organic base-anode is described. The reaction of hydrogen sulfide with nitrogen-containing organic bases is studied by means of cyclic voltammetry. The reaction of hydrogen sulfide with triethylamine leads to the formation of thiolate anion. The next step o reaction is electrochemical oxidation of the thiolate anion that to lead thiyl radical formation in situ thiyl radicals. In the presence of binary system on the basis of hydrogen sulfide aliphatic, aromatic, and heteroaromatic thiols and sulfides are formed at room temperature.Reaction of hydrogen sulfide with hydrocarbons is traditionally considered from the position homolytic cleavage of S-H bond resulting from thermolysis (400-650°C), radiolysis, photolysis or of ionic mechanism in the presence of mineral acids, acid catalysts, and Lewis acids [1][2][3][4]. Previously it was shown that the electrochemical oxidation of hydrogen sulfide (1.6 V) in CH 3 CN included the stages of one-electron transfer and subsequent fragmentation of unstable radical cation [5]. The combination of electrochemical and chemical processes (EC) results in the formation of key intermediates, the proton and thyil radical. The generated species take part in ionic and radical reactions with organic compounds simultaneously that lead to the formation of sulfur-containing products at room temperature [6].In this work we offer to use for the activation of hydrogen sulfide in the reactions with organic compounds a binary "organic base-anode" system combining the advantages of acid-base interaction and the anode initiation. The feature of this system is the changed sequence of stages of hydrogen sulfide activation: the chemical step comes before the electrochemical one (CE).The aim of the work is the development of effective synthetic method of organosulfur compounds production using the binary "organic base-anode" system. The method permits to decrease significantly the energy consumption necessary to realize the reaction.In the work a series of organic bases including pyridine I, quinoline II, acridine III, trimethylamine IV, triethylamine was considered V. It was found that hydrogen sulfide reacted with heterocyclic bases I-III to form unstable at-complexes (1.3-1.5 V) detected by cyclic voltammetry. Molecular complexes decompose in air and at heating to 40°C. The formation of pyridinium (-0.64 V), quinolinium (-0.68 V), acridinium (-0.72 V) cation was observed during the electrolysis performed at the potential of at-complex oxidation. In the reaction besides the formation of cations of heterocyclic compounds dimerization of thyil radicals occurred that led to sulfanes. The reaction of bases I-III with hydrogen sulfide under the above-mentioned conditions proceeds according to EC mechanism. The bases I-III [pK a (C 5 H 5 N) 5.14, pK a (C 9 H 7 N) 4.85, pK a (C 13 H 9 N) 5.60] insignificantly (on 0.1-0.3 V) decrease the potential of electrolys...

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The removal of acidic sulfur-containing components [hydrogen sulfide (H 2 S) and alkanethiols or thiols (RSH)] from simulated mixtures and analogues of gasoline fractions with Zn(II), Cu(II), Co(II), and Ni(II) acetates, pivalates, and malonates applied on silica gel with various porosities under ultrasonic treatment in solution has been studied. The dependence of the adsorption of H 2 S and RSH on the surface of silica gel modified by metal complexes with organic ligands on various factors (the pore size of the silica gel, the time of ultrasonic treatment, and the nature of carboxylate complexes) is established. The best results for the removal of total sulfur from the model mixture and an analogue of the gasoline fraction were obtained using silica gel modified with zinc pivalate (96%) and cobalt pivalate (95%). A waste-free method to desulfurize fuel with zinc pivalate based on the production of practically useful ZnS is suggested.