80379-89-1Relevant articles and documents
Nickel-Catalyzed Stereo- and Enantioselective Cross-Coupling of gem-Difluoroalkenes with Carbon Electrophiles by C?F Bond Activation
Zhu, Ziqi,Lin, Lin,Xiao, Jieshuai,Shi, Zhuangzhi
, (2021/12/27)
Stereo- and enantioselective cross-electrophile coupling involving C?F bond activation is reported. Treatment of gem-difluoroalkenes with racemic benzyl electrophiles in the presence of a chiral nickel complex using B2pin2 as a stoichiometric reductant allows the construction of a C(sp2)?C(sp3) bond under mild conditions, affording a broad range of monofluoroalkenes bearing stereogenic allylic centers. Initial mechanistic studies indicate that a radical chain pathway may be operating, wherein the ester group in the gem-difluoroalkene promotes C?F bond activation through oxidative addition to a Ni species.