Point-to-Axial Chirality Transmission: A Highly Sensitive Triaryl Chirality Probe for Stereochemical Assignments of Amines
作者:Tomasz Mądry、Agnieszka Czapik、Marcin Kwit
DOI:10.1021/acs.joc.0c00734
日期:2020.8.21
A readily available stereodynamic and the electronic circular dichroism (ECD)-silent 2,5-di(1-naphthyl)-terephthalaldehyde-based probe has been applied for chirality sensing of primary amines. The chiral amine (the inductor) forces a change in the structure of the chromophore system through the point-to-axial chirality transmission mechanism. As a result, efficient induction of optical activity in
一种容易获得的立体动力学和电子圆二色性(ECD)静音的2,5-二(1-萘基)-对苯二醛基探针已用于伯胺的手性传感。手性胺(感应剂)通过点对轴手性传递机理迫使生色团系统发生结构变化。结果,观察到在发色系统中光学活性的有效诱导。探针的蝴蝶状结构,末端的芳基起可变的“翅膀”的作用,可在1 B b范围内产生激子Cotton效应。萘发色团中的电子跃迁。在感应器-报告系统中观察到的激子对的符号可能与感应器的绝对配置相关,而特定棉花效应的振幅与母体对映体过量之间的线性关系为定量手性感测提供了潜力。尽管结构简单,但该探头对电感器结构中的细微差异(即O vs CH 2)具有前所未有的高度敏感性。