Deng, Qinfei published the artcilePhotoredox-catalyzed cascade addition/cyclization of N-propargyl aromatic amines: access to 3-difluoroacetylated or 3-fluoroacetylated quinolines, HPLC of Formula: 401-55-8, the publication is Organic Chemistry Frontiers (2018), 5(1), 19-23, database is CAplus.
The 3-difluoroacetylated quinolines I [R = C6H5, 4-CH3CH2CO(O)C6H4, 9H-fluoren-2-yl, thiophen-2-yl, etc.; R1 = H, 6-F, 7-CH3, 6-OCF3, etc.; X = 2-CF2C(O)OCH2CH3] and 3-fluoroacetylated quinolines I [X = 2-CHFC(O)OCH2CH3] were synthesized via a visible-light-induced cascade addition/cyclization of N-propargyl aromatic amines R2C6H4NHCH2CCR (R2 = H, 3-Me, 4-Cl, etc.) with Et bromodifluoroacetate or Et bromofluoroacetate catalyzed by fac-Ir(ppy)3 under mild conditions. For the substrates bearing various substituents on the aniline ring and benzene ring, the reaction proceeded smoothly to give the corresponding difluoroacetylated I [X = 2-CF2C(O)OCH2CH3] or fluoroacetylated quinolines I [X = 2-CHFC(O)OCH2CH3] in moderate to high yields.
Organic Chemistry Frontiers 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, HPLC of Formula: 401-55-8.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary