在这里,我们报告了简单的烷基氮丙啶和有机锌试剂之间的镍催化的 CC 键形成反应。这种方法代表了第一个采用非烯丙基和非苄基 Csp(3)-N 键作为亲电子试剂的催化交叉偶联反应。其成功的关键是使用带有缺电子烯烃的新 N 保护基团(cinsyl 或 Cn),该烯烃可指导氧化加成并促进还原消除。还介绍了与阐明交叉耦合机制有关的研究。
Ni-Catalyzed Carboxylation of Aziridines en Route to β-Amino Acids
作者:Jacob Davies、Daniel Janssen-Müller、Dmitry P. Zimin、Craig S. Day、Tomoyuki Yanagi、Jonas Elfert、Ruben Martin
DOI:10.1021/jacs.1c01916
日期:2021.4.7
pressure is disclosed. The protocol is characterized by its mild conditions, experimental ease, and exquisite chemo- and regioselectivity pattern, thus unlocking a new catalytic blueprint to access β-aminoacids, important building blocks with considerable potential as peptidomimetics.
Asymmetric Palladium‐Catalyzed Oxycarbonylation of Terminal Alkenes: Efficient Access to β‐Hydroxy Alkylcarboxylic Acids
作者:Bing Tian、Xiang Li、Pinhong Chen、Guosheng Liu
DOI:10.1002/anie.202104252
日期:2021.6.25
leading to high reactivity and excellent enantioselective control. Compared to the conventional methods, the reaction itself features alkenes as easily prepared starting materials, mild and operationally simple reaction conditions, and insensitivities to air and water. Moreover, this method allows for broad alkene substrate scope, excellent regio- and enantioselectivities, scalabilities and a wide array
Nickel-Catalyzed Enantioconvergent Reductive Hydroalkylation of Unactivated Alkenes with α-Pyridyl Alkyl Electrophiles
作者:Yiting Hao、Xinlin Wang、Yumeng Wu、Liangliang Song、Kui Zhang、Lingchao Cai
DOI:10.1021/acscatal.3c04147
日期:2023.12.1
established via a nickel/Box catalyst with α-pyridyl alkylbromide. The mild reaction conditions enable a remarkably broad substrate scope and good functional-group tolerance, leading to the formation of a variety of enantioenriched alkylated pyridine derivatives in good yields with high enantioselectivities. Further application of enantioenriched pyridine derivatives is demonstrated by an asymmetric Si–H
Chiral Cp<sup>x</sup>Rhodium(III)‐Catalyzed Enantioselective Aziridination of Unactivated Terminal Alkenes
作者:Juanjuan Wang、Mu‐Peng Luo、Yi‐Jie Gu、Yu‐Ying Liu、Qin Yin、Shou‐Guo Wang
DOI:10.1002/anie.202400502
日期:2024.3.18
A chiral cyclopentadienyl-rhodium(III) catalyzedhighly enantioselective aziridination of challenging unactivatedterminalalkenes and N-pivalolyloxy sulfonamides has been developed. This catalytic system demonstrated outstanding catalytic activity and broad functional group tolerance, yielding synthetically important and highly valuable chiral aziridines with good to excellent yields and enantioselectivities