Synthesis, Chiral Resolution, and Absolute Configuration of Functionalized Tröger’s Base Derivatives: Part II
作者:Christian Benkhäuser-Schunk、Boris Wezisla、Kirstin Urbahn、Ulf Kiehne、Jörg Daniels、Gregor Schnakenburg、Frank Neese、Arne Lützen
DOI:10.1002/cplu.201200029
日期:2012.5
Seven racemic derivatives of Tröger’s base—the 1,7‐dibromo‐substituted derivative 3, the 2,8‐dibromo‐substituted derivative 4, the 2,8‐diiodo‐substituted derivative 5, the 3,9‐diiodo‐substituted derivative 6, the 4,10‐dibromo‐substituted derivative 7, its singly debrominated analogue 8, and the 2,8‐diamino‐substituted derivative 9 in its Fmoc‐protected form—were synthesized and successfully resolved
Tröger的七个外消旋衍生物基的1,7-二溴取代的衍生物3中,2,8-二溴-取代的衍生物4中,2,8-二碘-取代的衍生物5中,3,9-二碘-取代的衍生物6,Fmoc保护形式的4,10-二溴取代的衍生物7,其单溴化的类似物8和2,8-二氨基取代的衍生物9均已合成,并通过(回收)HPLC在固定的Whelk上成功分离-O1阶段为半制备规模。这些是有价值的功能化C 2对称的构建块,可用于进一步的应用。通过X射线晶体结构分析和/或将其量子化学计算的圆二色性和UV / Vis光谱与实验获得的光谱进行比较,可以确定它们的绝对构型。