Yamato, Takehiko published the artcileDirect introduction of bromine onto a bridge methylene of 5,13-di-tert-butyl-8,16-dimethyl[2.2]metacyclophane, SDS of cas: 111865-47-5, the publication is Journal of Chemical Research (2006), 493-495, database is CAplus.
Treatment of 5,13-di-tert-butyl-8,16-dimethyl[2.2]metacyclophane I (R = R1 = H) with 1,3-dibromo-5,5-dimethylhydantoin in CH2Cl2 led to the first successful introduction of bromine onto a bridge methylene group, giving I (R = H, R1 = Br). This product was dehydrobrominated and was also converted to I (R = H; R1 = OAc, OH) and I (RR1 = O).
Journal of Chemical Research 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 C8H13N5O, SDS of cas: 111865-47-5.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary