Formation of basic compounds during the indole cyclization of ketone phenylhydrazones

…, V Boido, F Novelli, F Sparatore

文献索引：Boido, Caterina Canu; Boido, Vito; Novelli, Federica; Sparatore, Fabio Journal of Heterocyclic Chemistry, 1998 , vol. 35, # 4 p. 853 - 858

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被引用次数: 18

摘要

Abstract On the basis of previous occasional findings, the Fischer indole cyclization of ten ketone phenylhydrazones containing moieties of increasing bulkiness was investigated in order to isolate eventual side products. In the cases of the three 2-, 3-and 4-acetylpyridine phenylhydrazones the corresponding 2-pyridylindoles were the sole compounds so far isolated. In all the remaining cases, beside the indoles a mixture of basic compounds was ...