Abstract
Cyanine dyes containing azido groups in the 5 or 6 position of the benzazole ring were obtained from quaternary salts of azides of benzothiazole and benzimidazole. The introduction of an azido group into the dye molecule results in a considerable bathochromic effect.
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See [1] for communication II.
Translated from Khimiya Geterotsiklicheskikh Soedinenii. No. 5, pp. 640–642, May, 1974.
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Ol'shevskaya, I.A., Pochinok, V.Y. Synthesis and reactions of azides of heterocyclic compounds. Chem Heterocycl Compd 10, 553–555 (1974). https://doi.org/10.1007/BF00471325
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DOI: https://doi.org/10.1007/BF00471325