《Starazo triple switches – synthesis of unsymmetrical 1,3,5-tris(arylazo)benzenes》 was published in Beilstein Journal of Organic Chemistry in 2020. These research results belong to Heindl, Andreas H.; Wegner, Hermann A.. Synthetic Route of C6H5Br2N The article mentions the following:
Unsym. 1,3,5-tris(arylazo)benzenes – ‘starazos’ – which merge three photoswitches on one benzene ring, were successfully prepared Two different synthetic strategies, one based on Baeyer-Mills reactions and the other based on Pd-catalyzed coupling reactions of arylhydrazides and aryl halides, followed by oxidation, were investigated. The Pd-catalyzed route efficiently led to the target compounds, unsym. tris(arylazo)benzenes. These triple switches were preliminarily characterized in terms of their isomerization behavior using UV-vis and 1H-NMR spectroscopy. The efficient synthesis of this new class of unsym. tris(arylazo)benzenes opened new avenues to novel multistate switching materials. The experimental part of the paper was very detailed, including the reaction process of 3,5-Dibromoaniline(cas: 626-40-4Synthetic Route of C6H5Br2N)
3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Hydrogen peroxide (H2O2) and peroxy acids generally add an oxygen atom to the nitrogen of amines. With primary amines, this step is normally followed by further oxidation, leading to nitroso compounds, RNO, or nitro compounds, RNO2. Secondary amines are converted to hydroxylamines, R2NOH, and tertiary amines to amine oxides, R3NO.Synthetic Route of C6H5Br2N
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary