Design, synthesis and structural analysis of exoditopic macrocyclic ligands based on bipyridine units

Article abstract of DOI:10.1016/S0040-4039(97)00896-4

The synthesis of new unsymmetrical and symmetrical macrocycles based on 2,2'-bipyridine units bearing two or four phenyl groups at the 6 and 6' positions was achieved by an oxidative coupling reaction using 1,2-dibromoethane and organolithium derivatives of bipyridine. Among all new compounds prepared, two of them were structurally analysed in the solid state by X-ray diffraction.