D. Kozma et al., ENANTIOMERIC ENRICHMENT BY THE USE OF DENSITY DIFFERENCES BETWEEN RACEMIC COMPOUNDS AND OPTICALLY-ACTIVE ENANTIOMERS, Tetrahedron letters, 36(18), 1995, pp. 3245-3246
A new method for enantiomeric enrichment has been elaborated. Enantiom
eric mixtures in an inert solvent having a difference between the dens
ities of the racemate and the optically pure enantiomer separate into
upper and lower layers having different optical purity.