On October 29, 2014, Duan, Hongdong; Xu, Ting; Bu, Juan published a patent.Application In Synthesis of 2-Nitro-1H-benzo[d]imidazole The title of the patent was Benzimidazolylbenzaldehyde p-phenylenediamine Schiff base, its preparation method and application in fluorescence material and sensor. And the patent contained the following:
The invention disclosed a kind of benzimidazolylbenzaldehyde p-phenylenediamine Schiff base, its preparation method and application in fluorescence material and sensor. The claimed benzimidazolylbenzaldehyde p-phenylenediamine Schiff base is shown in structure I (R = H, F, Cl, NO2, OH, CN). The claimed compound is prepared with benzimidazole or benzimidazole derivative and p-fluorobenzaldehyde via N-C coupling to obtain 4-benzimidazolylbenzaldehyd or its derivative, then condensation with p-phenylenediamine to generate the Schiff base product. The obtained compound has the advantages of conjugated and rigid plane structure with good fluorescence performance and metal ion selectivity. The experimental process involved the reaction of 2-Nitro-1H-benzo[d]imidazole(cas: 5709-67-1).Application In Synthesis of 2-Nitro-1H-benzo[d]imidazole
The Article related to benzimidazolylbenzaldehyde phenylenediamine schiff base preparation, Heterocyclic Compounds (More Than One Hetero Atom): Imidazoles and other aspects.Application In Synthesis of 2-Nitro-1H-benzo[d]imidazole
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem