Abstract
The reaction of 6-oxo-, thioxo-2,3-dimethylthieno[2,3-d]pyrimidin-4-ones with electrophilic agents was studied. It was shown that during nitration these compounds undergo electrophilic unco-substitution forming 3-nitro- and 2-nitro-6-oxo- and 2,3-dinitro-6-thioxothieno[2,3-d]pyrimidin-4-ones, respectively; the reaction of these compounds with bromine proceeds in other directions.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1574–1576, November, 1993.
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Shodiev, M., Urakov, B.A., Mukarramov, N.I. et al. Reaction of 6-oxo-, thioxo-2,3-dimethylthieno[2,3-d]pyrimidin-4-ones with electrophelic reagents. Chem Heterocycl Compd 29, 1358–1360 (1993). https://doi.org/10.1007/BF00532040
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DOI: https://doi.org/10.1007/BF00532040