Evaluation of Chiral Recognition Ability of a Novel Uranyl–Salophen-Based Receptor: An Easy and Rapid Testing Protocol
作者:Antonella Dalla Cort、José Ignacio Miranda Murua、Chiara Pasquini、Miquel Pons、Luca Schiaffino
DOI:10.1002/chem.200400016
日期:2004.7.5
A novel member of a new class of chiral uranyl-salophen complexes has been synthesised. The chiral recognition ability of this receptor toward the enantiomers of two primary amines, a sulfoxide, and a quaternary ammonium chloride has been evaluated for the first time. The enantioselectivities obtained are encouraging. The NMR method developed for this purpose allows a fast, quantitative determination
合成了一类新的手性铀酰-salophen复合物的新型成员。首次评估了该受体对两种伯胺,亚砜和氯化季铵的对映体的手性识别能力。获得的对映选择性是令人鼓舞的。为此目的开发的NMR方法可直接从其外消旋混合物中快速,定量地确定宿主的对映选择性,并可作为应用组合方法寻找新受体的初步筛选工具。在这种情况下进行的实验还表明,这种手性铀酰-salophen受体的外消旋化的激活屏障远高于先前报道的21 kcal mol(-1)的下限。