Correction to “Nickel-Catalyzed Asymmetric Reductive Cross-Coupling To Access 1,1-Diarylalkanes”
作者:Kelsey E. Poremba、Nathaniel T. Kadunce、Naoyuki Suzuki、Alan H. Cherney、Sarah E. Reisman
DOI:10.1021/jacs.8b05247
日期:2018.6.20
Pages 5684 and 5685, Table of
第 5684 页和第 5685 页,表
Cu-Catalyzed Site-Selective Benzylic Chlorination Enabling Net C–H Coupling with Oxidatively Sensitive Nucleophiles
作者:Marco A. Lopez、Joshua A. Buss、Shannon S. Stahl
DOI:10.1021/acs.orglett.1c04038
日期:2022.1.21
Site-selective chlorination of benzylic C–H bonds is achieved using a CuICl/bis(oxazoline) catalyst with N-fluorobenzenesulfonimide as the oxidant and KCl as a chloride source. This method exhibits higher benzylic selectivity, relative to established chlorination protocols, and is compatible with diverse alkyl arenes. Sequential benzylic C–H chlorination/nucleophilic substitution affords C–O, C–S,
Nickel-Catalyzed Asymmetric Reductive Cross-Coupling To Access 1,1-Diarylalkanes
作者:Kelsey E. Poremba、Nathaniel T. Kadunce、Naoyuki Suzuki、Alan H. Cherney、Sarah E. Reisman
DOI:10.1021/jacs.7b01705
日期:2017.4.26
reductive cross-coupling of (hetero)aryl iodides and benzylic chlorides has been developed to prepare enantioenriched 1,1-diarylalkanes. As part of these studies, a new chiral bioxazoline ligand, 4-heptyl-BiOX (L1), was developed in order to obtain products in synthetically useful yield and enantioselectivity. The reaction tolerates a variety of heterocyclic coupling partners, including pyridines, pyrimidines
已经开发了(杂)芳基碘化物和苄基氯化物的不对称 Ni 催化还原交叉偶联,以制备对映体富集的 1,1-二芳基烷烃。作为这些研究的一部分,开发了一种新的手性生物恶唑啉配体 4-庚基-BiOX (L1),以便以合成有用的产率和对映选择性获得产品。该反应耐受多种杂环偶联物,包括吡啶、嘧啶、吲哚和哌啶。
Enantioselective Reductive
<scp>Cross‐Coupling</scp>
of Aryl/Alkenyl Bromides with Benzylic Chlorides
<i>via</i>
Photoredox/Biimidazoline Nickel Dual Catalysis
作者:Tongtong Li、Xiaokai Cheng、Jiamin Lu、Huifeng Wang、Qun Fang、Zhan Lu
DOI:10.1002/cjoc.202100819
日期:2022.5
The asymmetric reductive arylation and alkenylation of benzylic chloride under photoredox/nickel dual catalysis using chiral biimidazoline (BiIm) ligand is reported to access 1,1-diaryl alkanes and aryl allylic compounds with good yield as well as stereo- and enantioselectivities. This protocol uses more commercially available and less expensive C(sp2)-Br as the electrophile coupling partner. A primary
Nickel-Catalyzed Enantioconvergent Borylation of Racemic Secondary Benzylic Electrophiles
作者:Zhaobin Wang、Shoshana Bachman、Alexander S. Dudnik、Gregory C. Fu
DOI:10.1002/anie.201806015
日期:2018.10.26
been reports of the application of chiral nickel catalysts to the corresponding reactions with heteroatom nucleophiles to produce carbon–heteroatom bonds with good enantioselectivity. Herein, we establish that a chiral nickel/pybox catalyst can borylate racemic secondary benzylic chlorides to provide enantioenriched benzylic boronic esters, a highly useful family of compounds in organic synthesis.