chemo-selective electrochemical oxidation of thioethers to sulfoxides and sulfones was developed. The hydrogenbonding network generated from hexafluoro-2-propanol (HFIP) and acetic acid (AcOH) plays an important role in the modulation of oxidationpotential. The hydrogenbonding network complexes strongly with the sulfoxide, making it less prone to further oxidation. Therefore, thioethers can be selectively
Synthesis of Sulfur-Containing Oxindoles by Photoinduced Alkene Difunctionalization via Sulfur 1,2-Relocation
作者:Cong Lu、Rui Chen、Rui Wang、Dong Jing、Ke Zheng
DOI:10.1021/acs.orglett.2c04189
日期:2023.2.10
which have been widely applied in agrochemicals and pharmaceuticals. Herein, a new approach for the efficient construction of sulfur-containing oxindoles by photoinduced alkene difunctionalization via sulfur 1,2-relocation is developed. The method exhibited a high functional group tolerance and broad substrate compatibility. A library of sulfur-containing oxindole derivatives were synthesized under mild
A novel strategy is demonstrated for Lewis base-activated trifluoromethylsulfinylation of allylic alcohols. Controllable synthesis of structurally varied allylic trifluoromethanesulfones via sigmatropic rearrangements was performed, and trifluoromethanesulfinate esters were achieved. This metal-free, catalytic divergent transformation features good functional group tolerance and late-stage modification