Optical purity (enantiomeric excess: ee) of organic amine salts such as 1-(1-naphthyl)ethylamine hydrochloride was determined by FAB mass spectrometry using a deuterium-labeled/unlabeled enantiomer pair of a newly synthesized saccharide derivative (DD-Gal2deg/LL-Gal2deg-d24), podands.
使用新合成的糖衍生物 (DD-Gal2deg/LL) 的氘标记/未标记对映异构体对,通过 FAB 质谱法测定有机胺盐(例如 1-(1-萘基)乙胺盐酸盐)的光学纯度(对映体过量:ee) -Gal2deg-d24),豆荚。
New Artificial Host Compounds Containing Galactose End Groups for Binding Chiral Organic Amine Guests: Chiral Discrimination and Their Complex Structures
structural features extracted from the fructo-oligosaccharide derivatives, having a large chiral discrimination ability, and were then synthesized. These hosts showed chiral discrimination toward chiral organic ammonium salts. For example, the chiral discrimination ability (the ratio of association constants: K(R)/K(S)) of host 1, which has the highest value among them, was K(R)/K(S) = 3 for Trp-O-(i)Pr(+)