Tetrahedron report number 968Synthesis of unsymmetrical phthalocyanines: a brief overview

Unsymmetrical phthalocyanines (Pcs) reported to date are classified into four groups: A3B-type, ABAC-type, AABB-type, and ABAB-type. Synthesis of these compounds using different methods has been summarized and an outlook for unsymmetrical Pcs given.