ACTA CHEMICA SCANDINAVICA, cilt.53, sa.4, ss.247-252, 1999 (SCI-Expanded)
The novel metal-free and nickel phthalocyanines substituted peripherally with four 20-membered diazatetraoxa macrocycles each attached to a 15-membered crown ether moieties, have been synthesized in a multi-step reaction sequence. N-Tosylated derivatives are soluble in common organic solvents. The new compounds have been characterized by elemental analyses and by mass, IR, H-1 and C-13 NMR and UV-VIS spectroscopies.