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Performance of a new HPLC chiral stationary phase derived from N-(3,5-dinitrobenzoyl)-D-α-phenylglycine with a quinoxaline branching unit

Moslavac-Forjan D., Vinković V., Kontrec D.

Acta Chromatographica

2006

No. 17

97-107

A new brush-type HPLC chiral stationary phase (CSP) comprising π-acidic N-(3,5-dinitrobenzoyl)-D-α-phenylglycine chiral units bound to the quinoxaline units of modified γ-aminopropyl silica gel by a 1,2-diaminoethane spacer has been prepared by solid-phase synthesis. To test the CSP attempts were made to separate the enantiomers of twenty-two racemates with different functional groups and the results were compared with those obtained by use of three structurally related chiral stationary phases.