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. 19111-87-6, formula is C18H11Br, Name is 2-Bromotriphenylene, Formula: C18H11Br
Sato, Takeo;Shimada, Shigeru;Hata, Kazuo research published 《 Photo-aryl coupling and related reactions. II. Formation of triphenylenes from halo-o-terphenyls》, the research content is summarized as follows. Electronic effects on the photochem. conversion of o-terphenyl to triphenylene were examined by comparing the uv irradiation reaction, carried out in benzene using iodine as an oxidant, of three classes of o-terphenyl derivatives, 4- (I) and 4′-substituted (II) and 4,4”-disubstituted derivatives (III). While a strong electron-withdrawing group such as nitro group, hindered the cyclization reaction to occur, methoxy, fluoro, chloro and bromo compounds afforded the corresponding triphenylene derivatives With bromo and iodo compounds, however, a complex mixture of the products resulted due to photochem. cleavage of a carbon-halogen bonding, which led to the formation of phenylation products and hence phenyltriphenylenes together with reduction products. Further, with iodo compounds, it was found that no oxidant was necessary to effect the cyclodehydrogenation reaction since iodine was liberated during the photolysis. Possible pathways for the formation of the photolysis products from bromo and iodo compounds were discussed in relation to the relative rates of carbon-halogen cleavage and cyclization reactions. Comparison among three classes of halo compounds indicated that, with the exception of iodides, the cyclization reaction occurred more readily with type II compounds than type I compounds, while type III compounds reacted only with difficulty.
19111-87-6, 2-Bromotriphenylene is a useful research compound. Its molecular formula is C18H11Br and its molecular weight is 307.2 g/mol. The purity is usually 95%.
2-Bromotriphenylene is a brominating agent that has the ability to react with sodium carbonate and emit light. The luminescence of 2-bromotriphenylene can be used as an indicator of the degree of dilution, or how much water is present in a solution. It also emits light when it reacts with chloride ions in a reaction solution. 2-Bromotriphenylene can be used as a polymer matrix to form polymeric films, which are then used as catalysts for organic reactions. The luminescence properties of 2-bromotriphenylene make it suitable for use in functional theory experiments. This chemical compound is relatively low cost, and has been shown to have high yield in catalysis., Formula: C18H11Br
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary