Palladium-Catalyzed Enantioselective Narasaka-Heck Reaction/Direct C−H Alkylation of Arenes: Iminoarylation of Alkenes
作者:Xu Bao、Qian Wang、Jieping Zhu
DOI:10.1002/anie.201705641
日期:2017.8.1
A palladium-catalyzed reaction of γ,δ-unsaturated oxime esters with oxadiazoles afforded dihydropyrroles in good to excellent yields through an intramolecular iminopalladation/intermolecular direct heteroarene C−H alkylation cascade. This unprecedented iminoarylation of alkenes was subsequently realized in an enantioselective manner in the presence of a chiral bidentate phosphine ligand (Synphos).
γ,δ-不饱和肟酯与恶二唑的钯催化反应通过分子内亚氨基钯/分子间直接杂芳烃CH烷基化级联反应提供了良好或优异的收率的二氢吡咯。随后,在手性二齿膦配体(Synphos)的存在下,以对映选择性的方式实现了烯烃的这种前所未有的亚氨基芳基化。