名称:
Enantiomeric excess analysis of (2R, 3S)-3-deuterio-2-methylcyclohexanone and (1S, 2R, 3S)-3-deuterio-2-methylcyclohexanol, through deuterium NMR in a polypeptide lyotropic liquid crystal
摘要:
Poly-gamma-benzyl-L-glutamate (PBLG) and dichloromethane form a lyotropic liquid crystal which can be used as solvent for enantiomeric excess analysis of molecules containing several stereogenic centers, through deuterium NMR spectroscopy. All isomers of 3-deuterio-2-methylcyclohexanone and of 3-deuterio-2-methylcyclohexanol dissolved in PBLG/CH(2)Cl2 solvents, exhibit different quadrupolar splittings on their deuterium NMR spectra, which allows an accurate determination of their diastereoisomeric and enantiomeric excesses.
DOI:
10.1016/0957-4166(95)00006-b