Direct determination of enantiomeric compositions with optically active nuclear magnetic resonance lanthanide shift reagents

HL Goering, JN Eikenberry, GS Koermer…

Index: Goering,H.L. et al. Journal of the American Chemical Society, 1974 , vol. 96, p. 1493 - 1501

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Citation Number: 145

Abstract

Abstract: Tris (3-trifluoroacetyl-d-camphorato) europium (III), E~(facam)~, tris (3- heptafluorobutyryl-d-camphorat0)-europium (III), Eu (hfbc) 3, and the corresponding praseodymium analogs, Pr (facam), and Pr (hfb~)~, are useful nmr shift reagents for direct determination of enantiomeric compositions. These optically active shift reagents are applicable to those classes of compounds that respond to conventional shift reagents ...