Practical and Asymmetric Reductive Coupling of Isoquinolines Templated by Chiral Diborons
作者:Dongping Chen、Guangqing Xu、Qinghai Zhou、Lung Wa Chung、Wenjun Tang
DOI:10.1021/jacs.7b04256
日期:2017.7.26
We herein describe a chiral diboron-templated highly diastereoselective and enantioselective reductive coupling of isoquinolines that provided expedited access to a series of chiral substituted bisisoquinolines in good yields and excellent ee’s under mild conditions. The method enjoys a broad substrate scope and good functional group compatibility. Mechanistic investigation suggests the reaction proceeds
Rhodium‐Catalyzed Atroposelective Construction of Indoles via C−H Bond Activation
作者:Lincong Sun、Haohua Chen、Bingxian Liu、Junbiao Chang、Lingheng Kong、Fen Wang、Yu Lan、Xingwei Li
DOI:10.1002/anie.202012932
日期:2021.4.6
rhodium(III)‐catalyzed C−H activation of anilines bearing an N‐isoquinolyl directing group for oxidative [3+2] annulation with four classes of internal alkynes, leading to atroposelective indolesynthesis via dynamic kinetic annulation with C‐N reductive elimination constituting the stereo‐determining step. This reaction proceeds under mild conditions with high regio‐ and enantioselectivity and functional
One‐Pot Tandem Photoredox and Cross‐Coupling Catalysis with a Single Palladium Carbodicarbene Complex
作者:Yu‐Cheng Hsu、Vincent C.‐C. Wang、Ka‐Chun Au‐Yeung、Chung‐Yu Tsai、Chun‐Chi Chang、Bo‐Chao Lin、Yi‐Tsu Chan、Chao‐Ping Hsu、Glenn P. A. Yap、Titel Jurca、Tiow‐Gan Ong
DOI:10.1002/anie.201800951
日期:2018.4.16
transition‐metal‐catalyzed coupling (2 e− process) and photoredox catalysis (1 e− process) has emerged as a powerful approach to catalyze difficult cross‐coupling reactions under mild reaction conditions. Reported is a palladium carbodicarbene (CDC) complex that mediates both a Suzuki–Miyaura coupling and photoredox catalysis for C−N bond formation upon visible‐light irradiation. These two catalytic pathways