Deng, Qinfei published the artcileSynthesis of 6-Fluoroalkyl 6H-Benzo[c]chromenes via Visible-Light-Promoted Radical Addition/Cyclization of Biaryl Vinyl Ethers, SDS of cas: 401-55-8, the publication is Journal of Organic Chemistry (2018), 83(11), 6151-6161, database is CAplus and MEDLINE.
A novel visible-light-promoted cascade cyclization reaction for the synthesis of 6-fluoroalkyl 6H-benzo[c]chromenes has been successfully realized, which was initiated by intermol. radical addition to biaryl vinyl ethers using easily available fluoroalkylated reagents BrCF2CO2Et or 2-bromo-2,2-difluoroamides as the sources of fluorinated radicals, followed by the cyclization onto an aromatic ring process. This protocol tolerated a wide range of functional groups and provided the desired products in moderate to good yields.
Journal of Organic Chemistry published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C4H6BrFO2, SDS of cas: 401-55-8.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary