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Unexpected Recyclization of 1H-δ-Carbolines to Pyrrolo[1,2-a]indoles

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

When 1H-2-methyl-1-p-nitrophenyl-3-ethoxycarbonylpyrido[3,2-b]indole (1) is heated in alcoholic solutions of ammonia, we observe a previously unknown recyclization leading to formation of 2-alkoxycarbonyl-3-methyl-9-p-nitrophenylimino-9H-pyrrolo[1,2-a]indoles (3,6).

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Authors and Affiliations

  1. State Science Center of the Russian Federation “NIOPIK”, Moscow, 103787, Russia

    S. Yu. Ryabova, L. M. Alekseeva & V. G. Granik

  2. Russian Academy of Sciences, N. D. Zelinsky Institute of Organic Chemistry, Moscow, 117913

    A. S. Shashkov

Authors
  1. S. Yu. Ryabova
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  2. L. M. Alekseeva
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  3. A. S. Shashkov
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  4. V. G. Granik
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Ryabova, S.Y., Alekseeva, L.M., Shashkov, A.S. et al. Unexpected Recyclization of 1H-δ-Carbolines to Pyrrolo[1,2-a]indoles. Chemistry of Heterocyclic Compounds 39, 654–659 (2003). https://doi.org/10.1023/A:1025110602750

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