The regiospecific Fischer indole reaction in choline chloride.2ZnCl2 with product isolation by direct sublimation from the ionic liquid |
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| Authors: | Calderon Morales Raul Tambyrajah Vasuki Jenkins Paul R Davies David L Abbott Andrew P |
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| Affiliation: | The Green Chemistry Research Group, Department of Chemistry, University of Leicester, Leicester, UK. |
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| Abstract: | The Fischer indole synthesis occurs in high yield with one equivalent of the ionic liquid choline chloride[middle dot]2ZnCl(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. |
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