Bromination of anilines in superacids was written by Berrier, C.;Jacquesy, J. C.;Renoux, A.. And the article was included in Bulletin de la Societe Chimique de France in 1990.COA of Formula: C6H5Br2N This article mentions the following:
In HF-SbF5, bromination of PhNH2 at -40° with Br (0.6 equiv) gives 2-, 3-, and 4-BrC6H4NH2 in 3, 24, and 50% yields, resp. These percentages reflect the relative reactivities of the 2-, 3-, and 4-positions, no isomerization occurring at -40°. At room temperature, the products equilibrate intramolecularly by 1,2-Br shifts. Dibromination of PhNH2 (1.2 equiv Br) gives 10% 2,5- and 55% 3,4-Br2C6H3NH2. Under similar conditions, 3- and 4-MeC6H4NH2 give 47% 3,4-MeBrC6H3NH2 and 80% 4,3-MeBrC6H3NH2, resp. In the experiment, the researchers used many compounds, for example, 3,4-Dibromoaniline (cas: 615-55-4COA of Formula: C6H5Br2N).
3,4-Dibromoaniline (cas: 615-55-4) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.COA of Formula: C6H5Br2N
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary