作者:Ren-Yin Yang、Hui Wang、Bo Xu
DOI:10.1039/d1cc01132d
日期:——
A new synthesis of gem-difluoroalkenes from readily available alkyl triflones and difluorocarbene precursors such as TMSCF2Br has been reported. The reaction, regardless of electronic effect, gives gem-difluoroalkenes in good to excellent yields. The mechanism may involve deprotonation of triflones, nucleophilic addition, and the elimination of SO2CF3.
已经报道了由容易得到的烷基三氟乙烯酮和二氟卡宾前体例如TMCSF 2 Br合成宝石-二氟烯烃的新方法。无论电子效应如何,该反应均以良好的至优异的产率产生了宝石-二氟烯烃。该机制可能涉及三氟甲酮的去质子化,亲核加成以及消除SO 2 CF 3。