New approach to the synthesis of planar binuclear phthalocyanines of Mg, Zn and rare earth elements

Direct synthesis of planar binuclear phthalocyanine metallocomplexes sharing common annulated benzene ring providing the yields of target products up to 40%, in comparison with earlier described 5–11% yields, was developed. Generality of the elaborated method was shown by the example of synthesis of divalent (Mg, Zn) and rare-earth (Lu, Yb, Dy) metal complexes.