p-tert-Butyl thiacalix[4]arenes functionalized at the lower rim by amide, hydroxyl and ester groups as anion receptors
作者:Ivan I. Stoikov、Alena A. Yantemirova、Roman V. Nosov、Ildar Kh. Rizvanov、Ajdar R. Julmetov、Vladimir V. Klochkov、Igor S. Antipin、Alexander I. Konovalov、Ilya Zharov
DOI:10.1039/c0ob01251c
日期:——
CH3CO2−, H2PO4−, NO3−) were studied by UV spectroscopy. It was found that the stoichiometry of the complexes, generally, is 1 : 1, and the association constants are in the range of 103–105 M−1. The p-tert-butyl thiacalix[4]arenes containing secondary amide groups trisubstituted at the lower rim bind the studied anions most effectively. Selective receptors for fluoride and dihydrogen phosphate salts of
新的对叔丁基硫杂杯[4]芳烃在下缘被酰胺取代,羟合成了酯基。结合化合物的性质朝向一些四丁基铵盐Ñ -Bu 4 NX(X = F - ,氯- ,溴- ,我-,CH 3 CO 2 -,H 2 PO 4 -,NO 3 - )通过UV光谱法研究。发现该配合物的化学计量通常为1:1,缔合常数在10 3 –10 5 M -1的范围内。的对-叔在下部边缘上三取代的含有仲酰胺基的丁基丁基硫杂杯[4]芳烃最有效地结合了所研究的阴离子。发现了四丁基铵的氟化物和磷酸二氢盐的选择性受体。