作者:Uwe Hahn、Astrid Kaufmann、Martin Nieger、Ondřej Julínek、Marie Urbanova、Fritz Vögtle
DOI:10.1002/ejoc.200500819
日期:2006.3
A series of dendritic substituted alkaloids, deriving from quinine or atropine and Frechet-type dendrons up to generation three, have been prepared. Enantioseparation of the dendronized atropine ammonium salts was achieved by HPLC on chiral stationary phases. Investigation of the chiroptical properties of the series of dendrimers by circular dichroism spectroscopy revealed an influence of the chiral
一系列树突取代的生物碱,从奎宁或阿托品和 Frechet 型树突衍生到第三代,已被制备出来。树枝状阿托品铵盐的对映分离是通过 HPLC 在手性固定相上实现的。通过圆二色光谱对一系列树枝状聚合物的手性光学特性的研究揭示了手性核对树枝状部分的影响,与棉花带的强度有关。发现手性取决于其手性元素和附着在手性核上的正式非手性树突分支的产生(“树突效应”)。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)