Abstract
Thianthrene has been synthesized by reacting diphenyl sulfide with AlCl3 in heptane at 98°C for 8 h at a diphenyl sulfide: AlCl3 molar ratio of 2: 1; the thianthrene yield is 58%. The reaction mechanism proposed previously has been confirmed by quantum-chemical calculations; the reaction is characterized by a low negative value of Gibbs free energy, a low heat of reaction, and a high activation energy of the first step. Diphenyl ether and diphenylamine do not enter the test reaction because of low nucleophilicity of the heteroatoms; diphenylamine dimerizes under the reaction conditions to form N,N′-diphenylbenzidine.
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Original Russian Text © V.P. Nekhoroshev, R.R. Gubaidullin, A.G. Yarkova, A.V. Nekhorosheva, I.E. Nifant’ev, E.O. Voronkov, O.Kh. Poleshchuk, O.I. Tarasova, 2017, published in Neftekhimiya, 2017, Vol. 57, No. 2, pp. 214–219.
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Nekhoroshev, V.P., Gubaidullin, R.R., Yarkova, A.G. et al. Transformations of diphenyl sulfide and diphenylamine on aluminum chloride. Pet. Chem. 57, 272–277 (2017). https://doi.org/10.1134/S0965544117020207
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DOI: https://doi.org/10.1134/S0965544117020207