One-step stereoselective synthesis and NMR chiral shift properties of a novel hexacoordinated phosphorus cation |
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| Authors: | Lacour Jérôme Vial Laurent Bernardinelli Gérald |
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| Institution: | Département de Chimie Organique, Université de Genève, quai Ernest-Ansermet 30, CH-1211 Genève 4, Switzerland. jerome.lacour@chiorg.unige.ch |
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| Abstract: | reaction: see text] Tropolone, binol, and PCl(5) react in CH(2)Cl(2) at reflux to generate in one step a novel C(2)-symmetric hexacoordinated phosphorus cation of configuration controlled by the binol ligand. It behaves as an efficient NMR chiral shift agent for chiral anionic phosphate and borate anions. |
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