Abstract
The specificity of the nitration and bromination of dimethyl(2-thienyl)sulfonium salts was studied. It was found that, in contrast to methyl 2-thienyl sulfide, which reacts to form 3- and 5-substituted derivatives, the sulfonium salts give a mixture of 4- and 5-substituted products. Total suppression of the activity of the α position under the influence of the sulfonium grouping is not observed.
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See [1] for communication VIII.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 310–314, March, 1972.
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Belen'kii, L.I., Ksenzhek, N.S. & Gol'dfarb, Y.L. Reactions of aromatic and heteroaromatic compounds bearing electron-acceptor substituents. Chem Heterocycl Compd 8, 280–284 (1972). https://doi.org/10.1007/BF00475280
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DOI: https://doi.org/10.1007/BF00475280