Synthesis and crystal structure of (Z)-1-(phenylsulphenyl)-2-phenylethenyl p-toluenesulfonate |
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Authors: | Antonio Luiz Braga Oscar ED Rodrigues Daniel J Emmerich Claudio C Silveira Manfredo Hörner Ezequiel M Vazquez-Lopez |
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Institution: | (1) Departamento de Química, Universidade Federal de Santa Maria, Caixa Postal 5071, 97.105-900 Santa Maria-RS, Brazil;(2) Departamento de Química Inorgánica, Universidad de Vigo, E-36200 Vigo, Spain |
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Abstract: | The reaction between 1-phenylsulphenyl-2-phenylethyne and p-toluenesulfonic acid in methylene chloride gives (Z)-1-(phenylsulphenyl)-2-phenylethenyl p-toluenesulfonate (1) in good yields. This reaction is both a regio- and a stereospecific cis addition, confirmed by X-ray crystal structure analysis of the title compound. 1 crystallizes in the monoclinic space group P21/n with the lattice parameters a = 10.556(3), b = 9.730(3), c = 19.687(3) Å, = 105.05(2)°, V = 1952.7(8) Å3, and Z = 4. The results of elemental analysis, IR and NMR spectroscopy are included. |
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Keywords: | vinilic sulfides thioacetylenes tosylates X-ray structure |
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