CONVENIENT MODIFICATION OF THE LEIMGRUBER-BATCHO INDOLE SYNTHESIS: REDUCTION OF 2-NITRO-β-PYRROLIDINOSTYRENES BY THE FeCl<sub>3</sub>–ACTIVATED CARBON–N<sub>2</sub>H<sub>4</sub>·H<sub>2</sub>O SYSTEM
DOI:
https://doi.org/10.1007/1799Keywords:
enamines, indoles, β-dialkylamino-2-nitrostyrenes, Leimgruber-Batcho synthesis, reductive cyclizationAbstract
A new catalytic system containing ferric chloride, activated carbon, and hydrazine has been proposed for the reductive cyclization of β-dialkylamino-2-nitrostyrenes to give the corresponding indoles (Leimgruber-Batcho synthesis). Various substituted indoles may be obtained in high yield under these conditions.
How to Cite
Taydakov, I. V.; Dutova, T. Ya.; Sidorenko, E. N.; Krasnoselsky S. S. Chem. Heterocycl. Compd. 2011, 47(4), 425. [Khim. Geterotsikl. Soedin. 2011, 521.]
For this article in the English edition see DOI 10.1007/s10593-011-0776-2