One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine. 1575-37-7, formula is C6H7BrN2, Name is 4-Bromobenzene-1,2-diamine, Formula: C6H7BrN2
Fu, Jiaxu;Yan, Liuqing;Wang, Shuang;Song, Hongying;Gu, Qiang;Zhang, Yumin research published 《 Microwave-assisted synthesis and luminescent properties of triphenylamine substituted mono- and di- branched benzimidazole derivatives》, the research content is summarized as follows. In the present work, the synthesis of (benzoimidazolyl)-N,N-diphenylanilines I [R = H, Cl, Br, Me, CO2H] and II using sodium metasulfite (Na2S2O5) and p-toluenesulfonic acid (PTSA) sep. as catalysts was studied. Herein, the liquid phase microwave method was chosen to synthesize triphenylamine substituted mono- and di-branched benzimidazole derivatives compared with the solid phase microwave method, and the reaction conditions were optimized using Na2S2O5 as a catalyst in N,N-dimethylformamide (DMF) solvent. A possible reaction mechanism was discussed. On this basis, PTSA using a catalyst was introduced into the reaction, the yields of the target products were evidently increased (the yield was enhanced 5-22% using PTSA as a catalyst). It is found that PTSA only acted as a catalyst, while Na2S2O5 acted as both a catalyst and an oxidant, and PTSA could effectively catalyze the synthesis of benzimidazoles. Further, the luminescent properties of the synthesized compounds were comparatively studied after the structures of the synthesized compounds were confirmed. The results showed that the fluorescence quantum yield and the intensity of the synthesized compounds were enhanced with the increase in the number of substituted benzimidazole on triphenylamine, and the different substituents on 5-position of benzimidazole also had significant effect on the luminescent properties of the compound
1575-37-7, 4-Bromo-1,2-diaminobenzene can be obtained from 1,2-diaminobenzene via acetylation followed by bromination and alkaline hydrolysis.
4-Bromobenzene-1,2-diamine, also known as 4-Bromobenzene-1,2-diamine, is a useful research compound. Its molecular formula is C6H7BrN2 and its molecular weight is 187.04 g/mol. The purity is usually 95%.
4-Bromo-1,2-diaminobenzene is a dye that is used in diagnostic
procedures to detect the presence of amide groups. 4-Bromo-1,2-diaminobenzene can be used as an inhibitor for cationic polymerization reactions. It also has tuberculostatic activity and inhibits the growth of Mycobacterium tuberculosis. This compound reacts with aniline to form a benzimidazole derivative that contains a reactive amine group. The reaction between this amine group and different electrophiles generates benzimidazole compounds with different properties that are useful in nucleophilic attack reactions. The reaction between 4-bromo-1,2-diaminobenzene and methyl ethyl sulfide produces a luminescent probe that can be used to detect hydrogen bonds., Formula: C6H7BrN2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary