Chiral high-performance liquid and supercritical fluid chromatographic enantioseparations of limonene-based bicyclic aminoalcohols and aminodiols on polysaccharide-based chiral stationary phases

Tímea Orosz, Attila Bajtai, Tam Minh Le, Dániel Tanács, Zsolt Szakonyi, Ferenc Fülöp, Antal Péter, István Ilisz

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Enantioseparation of limonene-based bicyclic 1,3-aminoalcohols and 1,3,5- and 1,3,6-aminodiols was performed by normal-phase high-performance liquid chromatographic and supercritical fluid chromatographic (SFC) methods on polysaccharide-based chiral stationary phases. The effects of the composition of the mobile phase, the column temperature and the structures of the analytes and chiral selectors on retention and selectivity were investigated by normal-phase LC and SFC technique. Thermodynamic parameters derived from selectivity–temperature-dependence studies were found to be dependent on the chromatographic method applied, the nature of the chiral selector and the structural details of the analytes. Enantiorecognition in most cases was enthalpically driven but an unusual temperature behavior was also observed: decreased retention times were accompanied by improved separation factors with increasing temperature, i.e. some entropically driven separations were also observed. The elution sequence was determined in all cases. The separation of the stereoisomers was optimized in both chromatographic modalities.

Original languageEnglish
Article numbere4517
JournalBiomedical Chromatography
Volume33
Issue number5
DOIs
Publication statusPublished - May 2019

Keywords

  • column liquid chromatography
  • enantiomer separation
  • limonene-based chiral bicyclic compounds, aminoalcohols, aminodiols
  • polysaccharide-based columns

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Molecular Biology
  • Pharmacology
  • Drug Discovery
  • Clinical Biochemistry

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