available α-fluoro-α,β-unsaturated-(2-pyridyl)sulfones was realized that provided a series of polysubstituted 2-(1-fluorovinyl)pyridines in good yields. The intrinsic coordination between pyridine and Mg(II) along with the “negative fluorine effect” of the substrates should play the key role for the smooth transformation in the absence of transition-metal catalysts.
α‐difluoro(thio)methylated carbanions with molecular oxygen under mild conditions are reported. This strategy tames the redox reactions of the in situ generated hydroperoxy difluoromethylsulfides, in which solvent‐bonding can alter their reactivity and switch the oxidation selectivities. These controllable three‐component reactions of gem‐difluoroalkenes, thiols and molecular oxygen afford various useful α‐d
Palladium-catalyzed multi components oxy-aminofluorination and aminofluorination of gem-difluoroalkenes
作者:Fen Wu、Xin Li、Junbiao Chang、Dachang Bai
DOI:10.1016/j.cclet.2023.109155
日期:2024.2
of α-trifluoromethyl benzylic amines. Notably, three/four components oxy-aminofluorination processes were realized to give α-trifluoromethyl benzylicether with a terminal amino group, which proceed through C(sp3)–O bond cleavage of easily available ether and simultaneous introduced a fluorine, an amino and an oxy substituent in one pot with excellent regioselectivity. The divergent reactivity not only