Abstract
A new heterocyclic base- 2-methylfuro[2,3-g]benzothiazole — and cyanine dyes with residues of this base were synthesized. It is shown that introduction of a furo[2,3] group in the 6,7 positions of the benzothiazole residue in the cyanines leads to a smaller bathochromic effect than the introduction of a thieno[2,3] and, particularly, a benzo group in the same positions.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1603–1606, December, 1975.
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Abramenko, P.I., Zhiryakov, V.G. & Ponomareva, T.K. Polymethine dyes — Furo[2,3-g]benzothiazole derivatives. Chem Heterocycl Compd 11, 1361–1364 (1975). https://doi.org/10.1007/BF00764525
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DOI: https://doi.org/10.1007/BF00764525