Yang, Ren-Yin; Wang, Hui; Xu, Bo published their research in Chemical Communications (Cambridge, United Kingdom) in 2021. The article was titled 《Base promoted gem-difluoroolefination of alkyl triflones》.Recommanded Product: 4-Cyanobenzyl bromide The article contains the following contents:
A new synthesis of gem-difluoroalkenes ArC(R)=CF2 [Ar = 4-bromophenyl, naphthalen-2-yl, 5-(methoxycarbonyl)thiophen-2-yl, etc.; R = prop-2-en-1-yl, 3-phenylprop-2-yn-1-yl, (4-methylphenyl)methyl, etc.] from readily available alkyl triflones ArCH(R)S(O)2CF3 and difluorocarbene precursors such as TMSCF2Br has been reported. The reaction, regardless of electronic effect, gives gem-difluoroalkenes ArC(R)=CF2 in good to excellent yields. The mechanism may involve deprotonation of triflones, nucleophilic addition, and the elimination of SO2CF3. In the experiment, the researchers used 4-Cyanobenzyl bromide(cas: 17201-43-3Recommanded Product: 4-Cyanobenzyl bromide)
4-Cyanobenzyl bromide(cas: 17201-43-3) is a white solid. Its melting point is 113-117°C, and flash point is 125.1°C. It is insoluble in water at 20°C. It is stable under normal temperatures and pressures. It should be stored at 0-5°C.Recommanded Product: 4-Cyanobenzyl bromide
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts