One-pot synthesis and characterization of new cuprous pyrazinoporphyrazines containing peripherally functionalized units

The synthesis and characterization of some new peripherally substituted Cu-pyrazinoporphyrazines (Cu-Pzs) is described. The prepared α-dicyano compounds in the presence of cuprous chloride produced porphyrazine counterparts via one-pot cyclotetramerization reaction. The resulted porphyrazines are useful photosensitizers and good reagent for photodynamic therapy of cancer.