Abstract
In the chlorination of 4-methyl- and 4-chloroformylmethylenethiotetrachloropyridines, the chlorine atom enters the methyl or methylene group. In the case of the 4-(p-chlorobenzyl)-thio derivative, the molecule is cleaved to give tetrachloropyridine-4-sulfenyl chloride. Hydrogen peroxide oxidizes substituted benzyl- and ethoxycarbonylmethylenethiotetrachloropyridines to the corresponding sulfones, while nitric acid gives a mixture of tetrachloropyridinesulfonic acid and the corresponding benzole acid. quantitative yields (Table 2).
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Translated from Khimiya Geterotsiklicheskikh Soedinenii,No.8, pp. 1094–1098, August, 1972.
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Moshchitskii, S.D., Zalesskii, G.A., Ivashchenko, Y.N. et al. Chlorination and oxidation of some sulfurcontaining tetrachloropyridine derivatives. Chem Heterocycl Compd 8, 988–992 (1972). https://doi.org/10.1007/BF00476330
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DOI: https://doi.org/10.1007/BF00476330