Synthesis and characterization of novel cofacial bis-phthalocyanines containing 16-crown-5 ether groups

Four crown ether substituted cofacial bis-phthalocyanines were prepared by the cyclic condensation of dihydroxy groups of pentaerythritol moieties of phthalocyanine with tetraethyleneglycol ditosylate in the presence of NaH as base in refluxing THF.

Graphical abstractNovel cofacial bis-phthalocyanines containing crown ethers were synthesized by the cyclic condensation of dihydroxy groups at the periphery of the bisphthalocyanine complexes with tetraethyleneglycol ditosylate in the presence of NaH as base in refluxing THF.Download full-size image