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The regiospecific Fischer Indole reaction in choline chloride.2ZnCl[subscript 2] with product isolation by direct sublimation from the ionic liquid

By Raul Calderon Morales, Vasuki Tambyrajah, Paul R. Jenkins, David L. Davies and Andrew P. Abbott

Abstract

The Fischer indole synthesis occurs in high yield with one equivalent of the ionic liquid choline chloride·2ZnCl[subscript 2]; exclusive formation of 2,3-disubstituted indoles is observed in the reaction of alkyl methyl ketones, and the products readily sublime directly from the ionic liquid.Peer-reviewedPublisher Versio

Publisher: The Royal Society of Chemistry
Year: 2003
DOI identifier: 10.1039/B313655H
OAI identifier: oai:lra.le.ac.uk:2381/610
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