Crown ether derivatives of calix[5]arenes: synthesis and complexation properties
作者:Françoise Arnaud-Neu、Ralf Arnecke、Volker Böhmer、Stefano Fanni、James L. M. Gordon、Marie-José Schwing-Weill、Walter Vogt
DOI:10.1039/p29960001855
日期:——
Several crownetherderivatives of calix[5]- and tert-butylcalix[5]-arene have been synthesized and converted into their trimethyl ethers as neutral ligands. For selected examples extraction studies have been carried out with alkali metal picrates in the system water–dichloromethane and stability constants have been determined by UV spectroscopy in methanol. All ligands show a more or less pronounced