Abstract
The reaction of 2-hydroxymethylene-3-ketosteroids with 2-ketoindoline in the presence of hydrogen chloride gives steroido[3,2-b](carbazole-1-oxonium) chlorides, which split out a 2-ketoindoline molecule under the influence of phenylhydrazine and are converted to steroido[3,2-c]-1′-phenylpyrazoles.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 219–221, February, 1973.
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Zhungietu, G.I., Sukhanyuk, B.P., Chukhrii, F.N. et al. Steroido[3,2-b](carbazole-1-oxonium) salts. Chem Heterocycl Compd 9, 202–204 (1973). https://doi.org/10.1007/BF00569161
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DOI: https://doi.org/10.1007/BF00569161