Pyrylium[2,3-b]indole salts |
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Authors: | G. I. Zhungietu B. P. Sukhanyuk |
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Affiliation: | (1) Institute of Chemistry, Academy of Sciences of the Moldavian SSR, Kishinev |
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Abstract: | 2-Ketoindoline and 1-methyl-2-ketoindoline condense with hydroxymethylene ketones in the presence of hydrogen chloride to give pyrylium[2,3-b]indole chlorides, which can be converted to 5-(3-oxindolyl)-2-pyrazolines by reaction with phenylhydrazine and to 5-(3-oxindolyl)-2-isoxazolines by reaction with hydroxylamine.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1030–1032, August, 1972. |
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