A chiral stationary phase derived from a-(6, 7-dimethyl-l-naphthyl) isobutylamine is quite effective for the liquid chromatographic separation of the enantiomers of the N-3, 5- dinitrobenzoyl derivatives of a-amino acids, their esters and amides, amino alcohols, and amines. For example, the chromatographic separation factor for the enantiomers of derivatized methyl phenylalanate is 4.73, the band shapes are excellent, and the ...
