Abstract
As expected, the 3 and 8 positions are the reaction centers of 1H, 6H-pyrrolo-[2, 3-e] indole in the Vilsmeier-Haack and Mannich reactions. Diazo coupling takes place primarily in the 3 position and leads primarily to monosubstitution products. 6,8-Diacetyl-1H,6H-pyrrolo [2,3-e]indole and 1,8-diacetyl-1H, 6H-pyrrolo-[2,3-e] indole were isolated from the acetylation products.
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See [1] for communication 1.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 639–644, May, 1980.
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Samsoniya, S.A., Targamadze, N.L., Kurkovskaya, L.N. et al. Pyrroloindoles. 2. Some electrophilic substitution reactions in the 1H, 6H-pyrrolo[2, 3-e] indole series. Chem Heterocycl Compd 16, 495–500 (1980). https://doi.org/10.1007/BF00561347
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DOI: https://doi.org/10.1007/BF00561347