Template condensations: metal ion directed syntheses of macrocyclic, tricyclic, and quadricyclic metal complexes from butane-2,3-dione dihydrazone and formaldehyde
Abstract
Metal complexes of the ligand, butane-2,3-dione dihydrazone, react with formaldehyde to yield simple octa-aza-macrocyclic ligand complexes dihydro-octa-aza-annulene complexes, and clathrochelates of a quadricyclic ligand.