Synthesis of Calix[4]resorcinarene and 1,1′-Dinaphthylmethane Amide Derivatives and Their Ability to Extract Metal Cations

Aminolysis of ester derivatives of 1,1′-dinaphthylmethane and rctt -calix[4]resorcinarene afforded a series of ligands differing in the molecular platform structure, the number of electron-donor sites, the nature of terminal amide component, the nature and size of the spacers connecting the polycyclic core with the amide group. Using liquid extraction method, the effect of ligand structural features on its ability to recognize and bind s -, p -, d -, and f -metal cations was investigated, and the stoichiometry of formed complexes was calculated.