Abstract
Indoles that have alkyl groups in the pyrrole ring are brominated in the 5 position in sulfuric acid. The introduction of an alkyl group into the 7 position may change the orientation and result in the formation of the 6-bromo isomer.
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See [1] for communication XXIV.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1512–1516, November, 1971.
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Kost, A.N., Yudin, L.G., Budylin, V.A. et al. Indole chemistry. Chem Heterocycl Compd 7, 1406–1410 (1971). https://doi.org/10.1007/BF00481106
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DOI: https://doi.org/10.1007/BF00481106