For better understanding of the structure/property relationship of inherently chiral calixarenes in the 1,2-alternate conformation, we designed and synthesized an inherently chiral calix[4]crown-4 carboxylic acid 1,2-alternate conformer. Resolution of the racemates was effected by condensation with (S)-BINOL as a chiral auxiliary and separation of the resultant diastereomers via preparative TLC plates
为了更好地理解 1,2-交替构象中固有手性杯
芳烃的结构/性质关系,我们设计并合成了固有手性杯[4]冠-4
羧酸 1,2-交替构象异构体。通过与作为手性助剂的 (S)-BINOL 缩合和通过制备型 TLC 板分离所得非对映异构体,然后
水解分离的非对映异构体以提供标题化合物的对映体纯对映体来进行外消旋体的拆分。初步性质研究表明,标题化合物具有通过 1H NMR 光谱对映选择性区分 2-苯基甘
氨醇的能力。