Porphyrins are excellent ligands for metalation, but the metallo-derivatives of related systems are less well explored.  Recently, we have reported the synthesis of porphyrin analogues with carbocyclic or heterocyclic rings in place of the usual pyrrole units.  Oxypyriporphyrin 1 and oxybenziporphyrin 2 are readily available using the “3 + 1” methodology.  Oxypyriporphyrin has been shown to form stable complexes 3a with Ni(II), Cu(II), Zn(II), Ag(II) and Pd(II), while lead(II) acetate affords a labile derivative with a highly red shifted UV-vis spectrum.  Oxybenziporphyrin also easily forms stable organometallic derivatives 3b with Ag(III) and Pd(II).