Studies in the Indole Series. II. A General Synthesis of Cycloalkan[b]indolones

A general synthesis of cycloalkan[b]indolones from 3-indolealkanoic acids is described. Effect of 1-alkyl substitution of indole was observed on the ultraviolet spectra of 1-methyl-3-indolealkanoic acids. Cyclization of 3-indolealkanoic acids was mostly effected with polyphosphoric acid. Ring closur...

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Veröffentlicht in:	Chemical & pharmaceutical bulletin 1967/06/25, Vol.15(6), pp.863-872
Hauptverfasser:	Ishizumi, Kikuo, Shioiri, Takayuki, Yamada, Shun-ichi
Format:	Artikel
Sprache:	eng
Schlagworte:	Indoles - chemical synthesis Spectrum Analysis
Online-Zugang:	Volltext
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