Palladium-Catalyzed Direct C–H Allylation of Electron-Deficient Polyfluoroarenes with Alkynes
作者:Jun Zheng、Bernhard Breit
DOI:10.1021/acs.orglett.8b00393
日期:2018.4.6
A palladium-catalyzed intermolecular direct C–H allylation of polyfluoroarenes with alkynes is reported. Unlike classic hydroarylation reactions, alkynes are used as allylic electrophile surrogates in this direct aromatic C–H allylation. As an atom-economic and efficient method, various linear allylated fluoroarenes were synthesized from two simple and easy-to-access feedstocks in good to excellent
An aerobic oxidative cross-coupling reaction of alkenes with polyfluorobenzenes, through palladium-catalyzed allylic C-H activation, is reported. This attractive route provides a new way to forge allylic C-C bonds of valuable products, in good yields, with high regioselectivity.
Regio- and Stereoselective Allylic C–H Arylation with Electron-Deficient Arenes by 1,1′-Bi-2-naphthol–Palladium Cooperation
作者:Gang-Wei Wang、An-Xi Zhou、Shi-Xia Li、Shang-Dong Yang
DOI:10.1021/ol501247b
日期:2014.6.6
A palladium-catalyzedallylic C–H arylation reaction with electron-deficient arenes with high regio- and stereoselectivity is reported. This work represents the first successful use of 1,1′-bi-2-naphthol as the ancillary ligand in allylic C–H activation, which is the key factor for chemoselectivity. Furthermore, high selectivity allylic C–H acetoxylation and amination were also successfully achieved