Studies in the indole series. Part VI. Tetrahydropyrimido[3,4-a]indoles and isotryptamines
Autor: | A. Cohen, B. Heath-Brown, C. J. Cattanach |
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Rok vydání: | 1971 |
Předmět: | |
Zdroj: | Journal of the Chemical Society C: Organic. :359 |
ISSN: | 0022-4952 |
DOI: | 10.1039/j39710000359 |
Popis: | Fischer cyclisation of phenylhydrazones of 1,3-disubstituted 4-piperidones leads, in general, to both tetrahydropyrimido[3,4-a]indoles and 3-substituted 2-(2-alkylaminoethyl)indoles (isotryptamines). The latter can also be synthesised in low yield from 3-substituted 2-methylindoles by the Mannich reaction. They are cyclised to tetrahydropyrimido[3,4-a]indoles by treatment with aldehydes. |
Databáze: | OpenAIRE |
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