Abstract
Syntheses are reported for 2,3,3-trimethyl-3H-indoles and 1,1,2-trimethyl-1H-benz[e]indoles with fluorine-containing substituents (CF3, CF3S, and SO2CF3) at C-5 and for carbocyanine, merocyanine, and styryl dye derivatives of these indoles. The fluorine-containing substituents studied produce a bathochromic effect in the styryl dyes, hypsochromic effect in the merocyanine dyes, and, as a rule, a hypsochromic effect in the carbocyanine dyes.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1493–1499, November, 1983.
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Pazenok, S.V., Kondratenko, N.V., Popov, V.I. et al. Indo- and benzindocyanine dyes with fluorine-containing substituents. Chem Heterocycl Compd 19, 1182–1187 (1983). https://doi.org/10.1007/BF00515353
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DOI: https://doi.org/10.1007/BF00515353