ISSN:
1612-1112
Schlagwort(e):
Column liquid chromatography
;
Chiral discrimination
;
Guaran-borate complex
;
Mandelic acid enantiomers
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Summary The Chiral discriminating properties of the legume seed (Cyamopsis tetragonalobus) polysaccharide, guaran, has been investigated by this laboratory. Due to the presence of cis-hydroxyl groups in its molecule, guaran a galactomannan, forms tetracoordinated polymeric complexes with boron, resulting in cross-linking and gelling. Ligand exchange between the polymeric boron complex and a low molecular weight chiral diol can take place with stereoselectivity. The principle has been applied for the resolution of (±) mandelic acid by using ligand exchange chromatography.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02275913
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