Facile, efficient and one-pot synthesis of some metallophthalocyanines using microwave irradition

Phthalocyanines are planar macrocycles, small organic molecules with an 18-π electron system.1 Phthalocyanine derivatives that have a similar structure to porphrins, are used as functional materials especially with regard to their properties as dyes. Phthalocyanines have important properties such as electron transmission ability, condensation and optical properties. Metallophthalocyanine complexes are used as blue-green pigments for printing inks, laserbeam printers in non_linear opticals, as photosensitizers,2 as carrier generation material in near infrared (NIR),3 photoconductors, electrical conductors, catalysts and in photodynamic therapy.4 Metallophthalocyanines are usually prepared from the reaction between phthalonitrile, urea, metal salts and hexamethyldisilazane.5 This article shows the use of phthalic anhydride (2), urea (3), metal salts (1) in the presence of hepta ammonium molibdate as catalyst under microwave irradiaton (Fig.1). The advantage of this method for the synthesis of metallophthalocyanine are high yield, solvent-free conditions, capability for scale-up and simple procedure. All synthesized compounds characterized by FT-IR spectroscopic data.

کلیدواژه ها:

Metallophthalocyanine ، One-pot ، Phthalic anhydride ، Microwave