Diquats with Robust Chirality: Facile Resolution, Synthesis of Chiral Dyes, and Application as Selectors in Chiral Analysis
作者:Harish R. Talele、Dušan Koval、Lukáš Severa、Paul E. Reyes-Gutiérrez、Ivana Císařová、Petra Sázelová、David Šaman、Lucie Bednárová、Václav Kašička、Filip Teplý
DOI:10.1002/chem.201800369
日期:2018.5.28
is due to a combination of two structural features: the rigid o‐xylylene tether connecting the nitrogen atoms and the presence of two substituents in the bay region of the bipyridinium scaffold. The straightforward synthesis of diquats, plus facile resolution and derivatization make them attractive for chiral application studies. This is demonstrated by: 1) synthesis of the first non‐racemic diquat
描述了在180°C下具有极高消旋化势垒的敌草快,ΔG ≠理论为233 kJ mol -1。报道构鲁棒性是由于两个结构特征的组合:所述刚性Ó联萘骨架中连接氮原子和两个取代基的二甲苯基系链。敌草快的简单合成方法以及简便的拆分和衍生化使其对于手性应用研究具有吸引力。这可以通过以下方法得到证明:1)合成具有明显手性的第一种非外消旋敌草快染料,2)敌草快与手性分子立体定向相互作用的能力。这表明敌草快衍生物有可能在分离方法中用作手性选择剂。