Pyrrolocarbazole analogs of aromatic ske
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Manolis A. Fousteris; Anna I. Koutsourea; Evaggelia S. Arsenou; Sotiris S. Nikol
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Article
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2004
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Journal of Heterocyclic Chemistry
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English
β 174 KB
## Abstract The synthesis of seven pyrrolo[2,3β__a__]carbazoles derivatives using Fischer indole cyclization conditions is described. Polyphosphoric acid trimethylsilyl ester was used as a mild catalyst for the cyclization step of intermediate arylhydrazones which were prepared from ethyl 7βoxoβ4,5