Molecular precursors phthalimidomethyl phthalic acid and phthalimidomethyl phthalonitrile were synthesized for the first time and both were able to condensation to form tetra phthalimidomethyl phthalocyanine zinc through “ammomium molybdate method” and “DBU method ”respectively. The precursors and title compounds were characterized by element analysis, IR, UV/Vis as well as NMR. The two synthesis methods were compared, the result indicated that using the phthalimidomethyl phthalic acid as precursor through the former method, the product was an isomer with C4h symmetry, while using phthalimidomethyl phthalonitrile as precursor through the latter method, the products were a mixture of different isomers.
Metallophthalocyanines (MPcs) are generally obtained by templated reaction using metal salts and aromatic ortho-dinitrile or dicarboxylic anhyrides. [1] Published routes for preparing amphiphilic phthalocyanine mostly involve one of two methods: "in a plot" reaction and in situ reaction, [2] i. e. condensation of two different substituted precursors in appropriate statistical rate. The first method unavoidably leads to a product with much more complicated mixture, so that it needs tedious separation. While the second method in which the synthesis of amphiphilic phthalocyine is performed by mixed condensation of two types of precursors (hydrophic and lipophilic) which differ substantially in their physical properties and reactivities require arduously selection of optimal reaction conditions.……
PENG Yi-Ru LIN Zhi-Peng HUANG Feng-Hua LIU Li-Zheng
