Synthesis, separation and characterization of the structural isomers of octa-tert-butylphthalocyanines and dienophilic phthalocyanine derivatives

Article abstract of DOI:10.1002/chem.19970030710

Octa-tert-butylphthalocyanina-tonickel(n) (4) was synthesized from 3,5-di-tert-butylphthalonitrile (1) and nickel acetate. A nonstatistical mixture of the four structural isomers 4a-d was obtained. The isolation of the structural isomers 4a-d by preparati