Matsunaga, Yoichiro published the artcileReactions of 3-isopropenyl- and 3-acetyltropolone with quaternary ammonium tribromides, Related Products of bromides-buliding-blocks, the publication is Bulletin of the Chemical Society of Japan (1992), 65(1), 295-7, database is CAplus.
Treatments of 3-isopropenyltropolone (I) with quaternary ammonium tribromides in THF afforded 3-methyl-8H-cyclohepta[b]furan-8-one (II). The reactions in methanol-dichloromethane gave 7-bromo-3-methyl-8H-cyclohepta[b]furan-8-one. Bromination of 3-acetyltropolone with the tribromides in THF produced 3-(bromoacetyl)tropolone, whereas the reaction in the methanolic solvent gave 7-bromo- and 5,7-dibromo-substituted 3-acetyltropolones. The brominations of 4′-hydroxyacetophenone were also carried out.
Bulletin of the Chemical Society of Japan published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C10H16Br3N, Related Products of bromides-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary