Synthesis of new phthalocyanines substituted with four benzo[d]thiazol-2-ylthio groups

The synthesis of a new phthalonitrile derivative (4-(benzo[d]thiazol-2-ylthio)phthalonitrile), its metal-free phthalocyanine, and metallo-phthalocyanines are described. Phthalocyanines are formed in high yield with template synthesis. These compounds showed considerable solubility in CHCl₃, DMF and DMSO, a primary condition for potential applications. The newly synthesized compounds have been characterized by elemental analyses, UV-Visible spectra, IR and ¹H-NMR.