Efficient NMR enantiodifferentiation of chiral quats with BINPHAT anion.
Hexacoordinated phosphorus BINPHAT anion is an efficient NMR chiral shift agent for quaternary ammonium cations (quats) leading to large separations (DeltaDeltadelta up to 0.29 ppm) of the proton signals of the enantiomers. [reaction: see text]
Lacour
Jérôme
J
Département de Chimie Organique, Université de Genève, quai Ernest-Ansermet 30, CH-1211 Genève 4, Switzerland. jerome.lacour@chiorg.unige.ch
Vial
Laurent
L
Herse
Christelle
C