A catalytic defluorinative hydroarylation of alkenes with polyfluoroarenes in the presence of dppbz‐ligated Cu catalyst and silanes was developed. This method provides a straightforward and alternative avenue to synthetic important polyfluorinated arenes with readily available and bench‐stable alkenes as latent nucleophiles, and therefore avoids conventional reliance on stoichiometric quantities of
The CF(3) radical was generated from the reaction of S-(trifluoromethyl)diphenylsulfonium triflate with Na(2)S(2)O(4) or HOCH(2)SO(2)Na under suitable conditions without further reduction. Based on this, a method for the synthesis of alpha-trifluoromethylated ketones has been successfully developed.
N-fluorobenzenesulfonimide (NFSI) and its analogues as both nitrogen source and oxidant was successfully disclosed. A variety of alkenes, including aliphatic alkenes, styrenes, α, β-unsaturated esters, amides, acids, as well as enones, were all compatible to provide desired amination products. Mechanistic experiments suggest that the reaction underwent a metal-hydride-mediated hydrogen atom transfer (HAT) with alkene
2-oxytrifluoromethylations of styrenes were explored by using N-oxyphthalimide (NOPI) as the resulting benzylic radical anchor after cross-coupling by a CF3 radical under the catalyses of chiral N-salicylidene-derived oxovanadium(V) complexes. Among the 15 different solvents and 15 different catalysts examined, the best scenarios were in i-PrOH with C3-tert-butyl or C3-fluoro-/2,5-dimethylphenyl-substituted vanadyl
nest: The first thiocarboxylation of styrenes and acrylates with CO2 to generate important β-thioacids was realized by using visible light as a driving force and catalytic iron salts as promoters. This multicomponentreaction features broad substrate scope, mild reaction conditions, and high regio-, chemo-, and diasteroselectivity. Mechanistic studies indicate that a radical pathway can account for the