Synthesis of chiral calix[4]arenes bearing aminonaphthol moieties and their use in the enantiomeric recognition of carboxylic acids
作者:Mustafa Durmaz、Mustafa Yilmaz、Abdulkadir Sirit
DOI:10.1039/c0ob00399a
日期:——
exhibited different chiral recognition abilities towards the enantiomers of racemic materials and formed 2 : 1 or 1 : 1 complexes between host and guest. It was also demonstrated that chiralcalix[4]arenes 9 and 16 could be used as chiral NMR solvating agents to determine the enantiomeric purity of mandelic acid.
制备了两个在下部边缘用手性氨基萘酚官能化的武装手性杯[4]芳烃8-16,并通过FTIR,1 H和13 C,DEPT和COZY NMR光谱学和元素分析对这些受体的结构进行了表征。通过1 H NMR和UV / Vis光谱研究了这些受体与各种羧酸的对映选择性识别。受体对外消旋物质的对映异构体表现出不同的手性识别能力,并在宿主和客体之间形成2:1或1:1的复合物。还证明手性杯[4]芳烃9和16 可以用作手性NMR溶剂来确定对映体的纯度 扁桃酸。