Halogen-Bonding Interaction Stabilizing Cluster-type Diastereomeric Salt Crystals
作者:Yuka Kobayashi、Jin Maeda、Tetsuo Ando、Kazuhiko Saigo
DOI:10.1021/cg9010967
日期:2010.2.3
O-Ethyl 4-chlorophenylphosphonothioic acid (1) was newly synthesized and applied as a chiral selector for the enantioseparation of racemic 1-(4-halophenyl)ethylamines (halo = F, Cl, Br, I; 2a−d) through diastereomeric salt formation. The phosphonothioic acid 1 showed an excellent chirality-recognition ability for the fluorinated and iodinated amines 2a and 2d with the dramatic switch of the absolute
新合成了O-乙基4-氯苯基膦硫酸(1),并用作手性选择剂,用于通过非对映异构体盐拆分外消旋1-(4-卤代苯基)乙胺(卤代= F,Cl,Br,I; 2a - d)的手性选择剂编队。膦酸硫代酸1对氟化和碘化胺2a和2d表现出优异的手性识别能力,沉积盐中对映体富集的异构体的绝对构型从R的胺2a转变为S的胺2d具有出色的手性识别能力。。对四对非对映异构盐的X射线晶体学分析表明,盐晶体中的卤素键相互作用对转换起着非常重要的作用。