Synthesis and properties of a diastereopure ionic liquid with planar chirality |
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Authors: | Yasuhiro Ishida |
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Institution: | Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan |
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Abstract: | An imidazolium-based ionic liquid with cyclophane-type planar chirality was synthesized in an optically pure form for the first time. The resultant ionic liquid existed as a liquid at room temperature (Tg = −35 °C), and was found to be applicable as an NMR chiral shift reagent for racemic anions. Excellent robustness of the ionic liquid to a highly elevated temperature (270 °C) was proved from the viewpoints of isomerization and thermal decomposition. |
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Keywords: | Chiral recognition Cyclophane Diastereoselective synthesis Ionic liquid Planar chirality |
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