Synthesis and chiral separation of atropisomers of 4,5‐Di methyl ∆
<sup>4</sup>
N‐phenyl N‐aryl imidazoline‐2‐thione derivatives
作者:Aicha Laoufi、Nasser Belboukhari、Khaled Sekkoum、Hassan Y. Aboul-Enein
DOI:10.1002/chir.23306
日期:2021.6
Synthesis of three chiral 4,5‐Di methyl ∆4 N‐phenyl N‐aryl imidazole‐2‐thione derivatives was obtained by the condensation reaction of thiourea derivatives with α‐hydroxy ketone. The structure of these compounds has been characterized by using spectroscopic methods (UV, IR, 1H NMR, and 13C NMR). The 4,5‐Di methyl ∆4 N‐phenyl N‐aryl imidazole‐2‐thiones display a chiral axis around the N‐C bond linking
通过硫脲衍生物与α-羟基酮的缩合反应,可以合成三种手性4,5-Di甲基∆ 4 N-苯基N-芳基咪唑-2-硫酮衍生物。这些化合物的结构已通过使用光谱法(UV,IR,1 H NMR和13 C NMR)进行了表征。4,5-二甲基∆ 4N-苯基N-芳基咪唑-2-硫酮在杂环骨架的氮与芳基碳原子之间的N-C键周围显示手性轴。通过高效液相色谱法,对基于直链淀粉和纤维素的多糖组成的七个手性选择剂,即Chiralpak®AD,Chiralcel®OD,Chiralcel®OD-H,Chiralcel®,通过高效液相色谱法对这些衍生物的阻转异构体进行手性分析筛选OJ,Chiralcel®OD-3R,Chiralcel®OZ-3和Chiralpak®AS-3R。在这项工作中,还研究了邻位取代基对4,5-Di甲基∆ 4 N-苯基N-芳基咪唑-2-硫酮衍生物的拆分的影响。