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Synthesis 2015; 47(21): 3371-3384
DOI: 10.1055/s-0034-1381135
DOI: 10.1055/s-0034-1381135
paper
Synthesis of Novel Indazole-Derived Ionic Liquids
Further Information
Publication History
Received: 18 March 2015
Accepted after revision: 28 May 2015
Publication Date:
03 August 2015 (online)
Abstract
A very simple, convenient, two-step halide-free method for the synthesis of a novel homologous series of 36 room-temperature indazolium ionic liquids is reported, in which the indazolium moiety is substituted with different n-alkyl chains, and coupled with a tetrafluoroborate anion. As an example, the newly designed indazolium ionic liquid, 1-ethyl-2-pentyl-2H-indazol-2-ium tetrafluoroborate ([EPentIn]BF4) is employed as an ionic solvent to demonstrate its efficiency as a green solvent in a crossed aldol condensation reaction.
Supporting Information
- Supporting information for this article is available online at http://dx.doi.org/10.1055/s-0034-1381135.
- Supporting Information
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For recent reviews on ionic liquids, see: