The 60 MHZ1H NMR spectra of racemic commercial fenimide, 4-ethyl-3-methyl-3-phenyl-2,5-pyrrolidine-dioner1, have been studied in CDCl3solution at 28° with the achiral shift reagent, tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato) europium-(III)2, and the chiral reagent, trist3-(heptafluoro-propylhydroxymethy1ene)-d-camphoratol europium(III)3.Use of2substantially increased the chemical shift differences between resonances of corresponding nuclei in thealphaandbetadiastereomers, simplifying mixture analyses. Use of the chiral3produced enantiomeric shift differences, ΔΔΔ for several signals of1.In particular, with a 0.309 molal solution of1and a3:1, molar ratio near 0.4, four distinct singlets can be seen for the quaternary methyl signal. Direct simultaneous analysis for all four stereoisomers (two pairs of enantiomers) should be feasible.