Abstract
The reaction of indoles with 1-acyl-5-hydroxypyrazolidines under heterogeneous catalysis conditions leads, depending on the structure of indole, to 2- and/or 3-(1-acyl-5-pyrazolidinyl)indoles. Thus, the formation of 2-pyrazolidinylindoles is the results of an unco-substitution at the 3-position of the indole, followed by migration of the pyrazolidine ring.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1207–1213, September, 1990.
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Sviridova, L.A., Aganas'eva, S.V., Golubeva, G.A. et al. Introduction of the pyrazolidine ring into the pyrrole ring of indole. Chem Heterocycl Compd 26, 1008–1012 (1990). https://doi.org/10.1007/BF00472482
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DOI: https://doi.org/10.1007/BF00472482