IMPROVED METHOD FOR THE SYNTHESIS OF 1-VINYLINDOLE
DOI:
https://doi.org/10.1007/461Keywords:
acetylene, indole, 1-vinylindole, superbase, vinylationAbstract
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).
Authors: E. Yu. Shmidt, N. I. Protsuk, A. M. Vasil'tsov, A. V. Ivanov, A. I. Mikhaleva, and B. A. Trofimov
English Translation in Chemistry of Heterocyclic Compounds, 2013, 49 (3), pp 404-407