Efficient NMR enantiodifferentiation of chiral quats with BINPHAT anion.

Org Lett

Département de Chimie Organique, Université de Genève, quai Ernest-Ansermet 30, CH-1211 Genève 4, Switzerland.

Published: April 2002

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]

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http://dx.doi.org/10.1021/ol025669kDOI Listing

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