Abstract
Tetrachloro-1,2-difluoroethane reacted with pyrazole and imidazole sodium salts to give mixtures of the corresponding N-(1,2,2-trichloro-1,2-difluoroethyl) derivatives and (E)-1,2-difluoro-1,2-dihetarylethenes. (E)-1,2-Difluoro-1,2-di(3,5-dimethyl-1H-pyrazol-1yl)ethene was also obtained as a result of replacement of chlorine atoms in 1,2-dichloro-1,2-difluoroethene. Analogous reaction with more nucleophilic imidazole involved replacement of not only chlorine but also fluorine atoms in 1,2-dichloro-1,2-difluoroethene, yielding tetraimidazolyl-substituted ethylene.
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Original Russian Text © K.I. Petko, T.M. Sokolenko, S.Yu. Kot, T.A. Kasyanchuk, L.M. Yagupol’skii, 2011, published in Zhurnal Organicheskoi Khimii, 2011, Vol. 47, No. 4, pp. 561–564.
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Petko, K.I., Sokolenko, T.M., Kot, S.Y. et al. Reactions of azoles with tetrachloro-1,2-difluoroethane and 1,2-dichlorodifluoroethylene. Russ J Org Chem 47, 563–567 (2011). https://doi.org/10.1134/S1070428011040154
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DOI: https://doi.org/10.1134/S1070428011040154