Improved method for the synthesis of 1-vinylindole.

…, A Vasil'tsov, A Ivanov, A Mikhaleva…

Index: Shmidt; Protsuk; Vasil'Tsov; Ivanov; Mikhaleva; Trofimov Chemistry of Heterocyclic Compounds, 2013 , vol. 49, # 3 p. 404 - 407 Khim. Geterotsikl. Soedin., 2013 , vol. 49, # 3 p. 436 - 439,4

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Abstract

Abstract A highly efficient method has been developed for the synthesis of 1-vinylindole based on the vinylation of indole by acetylene at atmospheric pressure using the superbase KOH-DMSO catalytic system. The method allows the preparation of the 1-vinylindole in 94% yield with a purity of 99%(after a single distillation of the crude product).[ABSTRACT FROM AUTHOR]

~92%

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