Synthesis and isolation of 2,9,17,23-tetrakis[(3,5-dimethyl-1H-pyrazol-1-yl)phenoxy]phthalocyanine and its magnesium(II) and zinc(II) complexes

Abstract

The synthesis of novel phthalocyanine containing four (3,5-dimethyl-1H-pyrazol-1-yl)phenoxy groups and its complexes with magnesium and zinc is reported. The practically pure CS regioisomers of peripheral substituted phthalocyanines were separated and isolated by column chromatography with good yields. The structure and symmetry of synthesized phthalocyanines were confirmed by1H NMR,13C NMR, IR, UV-Vis, and MS spectral data. Influence of metals and reaction conditions on the isolation of practically pure CS regioisomers were discussed. Aggregation properties of phthalocyanines were investigated in DMF in different concentration ranges.