A Template Synthesis of Polyamine Macrocycles Containing the 1,1′-Bis(2-phenol) Function

The synthesis of two new polyamine macrocycles, each bearing the 1,1′-bis(2-phenol) group as an integral part of the cyclic framework, is reported. The ligands were obtained by template reactions using a cadmium(II) complex of the suitable polyamine condensed with 3,3′-diformyl-1,1′-bis(2-phenol), followed by selective reduction of the two imine bonds and demetallation in acidic medium.