Abstract
The cyclization of 5-acetyl-2-ethoxycarbonylindole phenylhydrazone gave 2′-ethoxycarbonyl-2,5′-bis-1H-indole, the saponification of which and subsequent decarboxylation of the resulting acid led to the formation of 2,5′-bis-1H-indole — a new unsymmetrical bisindole system.
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See [1] for Communication 18.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 349–351, March, 1984.
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Samsoniya, S.A., Mumladze, É.A., Chikvaidze, I.S. et al. Bisindoles. 19. Synthesis of 2,5′-bis-1H-indole. Chem Heterocycl Compd 20, 280–282 (1984). https://doi.org/10.1007/BF00515639
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DOI: https://doi.org/10.1007/BF00515639