One imidazole Benzaldenydehyde Schiff base seat bis-p-phenylenediamine and its preparation method

The present invention relates to an imidazole bis Schiff base condensation of benzaldehyde and preparation method seat-phenylenediamine. Firstly imidazole and its derivatives fluorobenzaldehyde as starting material, was prepared 4-imidazole or imidazole derivative benzaldehyde benzaldehyde. And then with p-phenylenediamine as a raw material, by a condensation reaction of an aldehyde with a primary amine to give a series of Schiff base having a conjugated structure and the rigid planar. The synthesis process is low cost, high yield, the reaction conditions are easily controlled, simpler product purification. The novel compounds of the present invention have good fluorescence properties, while having selectivity for metal ions, can be used in the field of sensors or materials.