B. Cathala et al., MACROBICYCLIC AND MACROTRICYCLIC TETRALACTAMS WITH 1,10-PHENANTHROLINE UNITS - DINUCLEAR EU3+ CRYPTATE OF THE MACROTRICYCLIC LIGAND, Tetrahedron letters, 35(12), 1994, pp. 1863-1866
The synthesis of a key 18-membered diazatetralactam and of subsequent
macrobicycle and macrotricycle with 1,10-phenanthroline units is descr
ibed. The predominant macrotricyclic cryptand gives a dinuclear europi
um cryptate characterized by MS techniques and luminescence emission.