Shen, Chaoren et al. published their research in Synlett in 2016 | CAS: 452-62-0

3-Bromo-4-fluorotoluene (cas: 452-62-0) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon–bromine bond is electrophilic in nature. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.SDS of cas: 452-62-0

Selective Preparation of Xanthones from 2-Bromofluorobenzenes and Salicylaldehydes via Palladium-Catalyzed Acylation-SNAr Approach was written by Shen, Chaoren;Wu, Xiao-Feng. And the article was included in Synlett in 2016.SDS of cas: 452-62-0 This article mentions the following:

A regioselective pathway for the preparation of xanthones from 2-bromofluorobenzenes and salicylaldehydes was developed. The reaction proceeded through palladium-catalyzed acylation-SNAr sequence. Good to moderate yields of the desired xanthones were prepared in one step. Based on the results of control experiments, a possible reaction mechanism is proposed. In the experiment, the researchers used many compounds, for example, 3-Bromo-4-fluorotoluene (cas: 452-62-0SDS of cas: 452-62-0).

3-Bromo-4-fluorotoluene (cas: 452-62-0) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon–bromine bond is electrophilic in nature. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.SDS of cas: 452-62-0

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary