Divinyl sulfide. Communication 9. Kinetics and mechanism of reaction of phenylacetylene with sodium hydrosulfide in aqueous dimethyl sulfoxide
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According to the data of kinetic study by UV and PMR spectroscopic methods, the formation of cis, cis-di(2-phenylvinyl) sulfide in the reaction between phenylacetylene and sodium hydrosulfide proceeds consecutive-parallel with the intermediate formation of cis-2-phenylvinylthiol, identified in the form of cis-2-phenylvinyl alkyl sulfides.
The rate constants at different temperatures and activation parameters of the consecutively-parallel reactions were estimated.
The formation of cis-2-phenylvinyl thiol is inhibited by water. At water concentrations in the range from 0.2 to 6 M, a rectilinear dependence is observed between the logarithms of the rate constants and the concentration of water.
KeywordsSulfide Dimethyl Thiol Water Concentration Sulfoxide
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