Chirality Assignment of Amines and Amino Alcohols Based on Circular Dichroism Induced by Helix Formation of a Stereoregular Poly((4-carboxyphenyl)acetylene) through Acid−Base Complexation
作者:Eiji Yashima、Teruyuki Matsushima、Yoshio Okamoto
DOI:10.1021/ja964470y
日期:1997.7.1
upon complexation with chiral amines and amino alcohols in DMSO and in the film, the sign of which reflects the stereochemistry including bulkiness, type (primary, secondary, or tertiary), and absolute configuration of the amines. Therefore, the polyacetylene can be used as a novel probe for determining the chirality of amines. Most primary amines and amino alcohols of the same configuration gave the
一种光学惰性的聚乙炔,聚((4-羧基苯基)乙炔)(poly-1),在与 DMSO 和薄膜中的手性胺和氨基醇络合后,在紫外可见光区表现出诱导圆二色性(ICD),其符号反映立体化学,包括胺的体积、类型(一级、二级或三级)和绝对构型。因此,聚乙炔可作为测定胺手性的新型探针。大多数具有相同构型的伯胺和氨基醇对诱导的棉花效应给出了相同的信号;然而,本研究中使用的仲胺和/或叔胺倾向于表现出与相同构型的伯胺和氨基醇相反的棉花效应迹象。ICD 的大小可能随着手性胺的体积增加而增加。研究了poly-1与手性胺螺旋结构形成过程中的络合动力学。