Ylide-Functionalized Phosphine (YPhos)–Palladium Catalysts: Selective Monoarylation of Alkyl Ketones with Aryl Chlorides
作者:Xiao-Qiang Hu、Dominik Lichte、Ilja Rodstein、Philip Weber、Ann-Katrin Seitz、Thorsten Scherpf、Viktoria H. Gessner、Lukas J. Gooßen
DOI:10.1021/acs.orglett.9b02830
日期:2019.9.20
phosphine (YPhos) ligands allow the palladium-catalyzed α-arylation of alkylketones with aryl chlorides with record setting activity. Using a cyclohexyl-substituted YPhos ligand, a wide range of challenging ketone substrates was efficiently and selectively monoarylated under mild conditions. A newly designed YPhos ligand bearing tert-butyl groups on the coordinating phosphorus atom is already active