posted on 2009-12-08, 16:23authored byRaul Calderon Morales, Vasuki Tambyrajah, Paul R. Jenkins, David L. Davies, Andrew P. Abbott
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.