Absolute Configuration for 1,<i>n</i>-Glycols: A Nonempirical Approach to Long-Range Stereochemical Determination
作者:Xiaoyong Li、Carmin E. Burrell、Richard J. Staples、Babak Borhan
DOI:10.1021/ja2119767
日期:2012.6.6
n-glycols (n = 2-12, 16) bearing two chiral centers were rapidly determined via exciton-coupled circular dichroism (ECCD) using a tris(pentafluorophenyl)porphyrin (TPFP porphyrin) tweezer system in a nonempirical fashion devoid of chemical derivatization. A unique "side-on" approach of the porphyrin tweezer relative to the diol guest molecule is suggested as the mode of complexation.
具有两个手性中心的 1,n-二醇 (n = 2-12, 16) 的绝对构型是通过激子耦合圆二色性 (ECCD) 使用三(五氟苯基)卟啉(TPFP 卟啉)镊子系统在非经验的情况下快速确定的没有化学衍生的时尚。卟啉镊子相对于二醇客体分子的独特“侧面”方法被建议作为络合模式。