Nickel‐Catalyzed Intermolecular Asymmetric Addition of Aryl Iodides across Aldehydes
作者:Ziqi Zhu、Jieshuai Xiao、Mingjie Li、Zhuangzhi Shi
DOI:10.1002/anie.202201370
日期:2022.5.9
An enantioselective aryl-addition has been accomplished using a combination of aryl iodides and aldehydes via asymmetric nickel catalysis. These mild catalytic conditions provide a new strategy for the enantioselective construction of secondary alcohols, avoiding the use of organometallic nucleophiles.
Nickel-catalyzed 1,2-addition of arylboroxines to aromatic aldehydes
作者:Takafumi Arao、Kazuhiro Kondo、Toyohiko Aoyama
DOI:10.1016/j.tetlet.2007.04.025
日期:2007.6
Development of Ni-Et-Duphos-catalyzed 1,2-addition of arylboroxines to aromatic aldehydes is described. The dramatic effect of boron reagent and phosphine ligand is observed. This method with a phosphine ligand allows asymmetric arylation of aromatic aldehydes (up to 78% ee). (c) 2007 Elsevier Ltd. All rights reserved.
Chiral Electron-Rich PNP Ligand with a Phospholane Motif: Structural Features and Application in Asymmetric Hydrogenation
catalysts with a PNP type ligand, the electron-rich chiral PNP ligands have still been rarely reported because of the difficulties in synthesis and the nature of air-sensitivity. Herein, we report a novel chiral PNP ligand (Heng-PNP) with both a rigid backbone and a bulky tert-butyl group on the phospholane motif. We successfully obtained its divalent iron complex. The chiral environment of its Ir(III) complex