Cu-Catalyzed Cross-Coupling of Nitroarenes with Aryl Boronic Acids to Construct Diarylamines
作者:Xinyu Guan、Haoran Zhu、Tom G. Driver
DOI:10.1021/acscatal.1c03113
日期:2021.10.15
copper-catalyzed reaction of nitroarenes with arylboronicacids to form diarylamines that uses phenyl silane as the stoichiometric terminal reductant is described. This cross-coupling reaction requires as little as 2 mol % of CuX and 4 mol % of diphosphine for success and tolerates a broad range of functional groups on either the nitroarene or the arylboronicacid to afford the amine in good yield. Mechanistic
A photochemical C–N coupling of aryl halides with nitroarenes is demonstrated for the first time. Catalyzed by a NiII complex in the absence of any external photosensitizer, readily available nitroarenes undergo coupling with a variety of aryl halides, providing a step‐economic extension to the widely used Buchwald–Hartwig C–N couplingreaction. The method tolerates coupling partners with steric‐congestion
首次证明了芳基卤化物与硝基芳烃的光化学C–N偶联。在没有任何外部光敏剂的情况下,通过Ni II络合物的催化,易得的硝基芳烃与各种芳基卤化物偶合,为广泛使用的Buchwald-Hartwig C-N偶合反应提供了经济上的扩展。该方法耐受具有对碱基和亲核试剂敏感的空间拥塞和官能团的偶联伴侣。机理研究表明,该反应是通过将由Ni I / Ni III循环生成的芳基加至亚硝基芳烃中间体而进行的。
[EN] NOVEL PHENOXYACETAMIDE DERIVATIVES AND USE THEREOF FOR THE PREPARATION OF DIPHENYLAMINES<br/>[FR] NOUVEAUX DERIVES DE PHENOXYACETAMIDES ET UTILISATION DE CES DERIVES POUR LA PREPARATION DE DIPHENYLAMINES
申请人:MERCK PATENT GMBH
公开号:WO2005051892A1
公开(公告)日:2005-06-09
The present invention relates to novel phenoxyacetamide derivatives, to a process for the preparation thereof and to the use thereof for the preparation of diphenylamines.
本发明涉及新型苯氧乙酰胺衍生物,其制备方法和用于制备二苯胺的用途。
Novel phenoxyacetamide derivative and use thereof for preparation of diphenylamines
申请人:Lardy Claude
公开号:US20070072915A1
公开(公告)日:2007-03-29
The present invention relates to novel phenoxyacetamide derivatives, to a process for the preparation thereof and to the use thereof for the preparation of diphenylamines.
本发明涉及新型苯氧基乙酰胺衍生物、其制备方法以及用于制备二苯胺的用途。
Direct Chan–Lam Amination and Etherification of Aryl BMIDA Reagents
作者:John M. Halford‐McGuff、Eva M. Israel、Matthew J. West、Julien C. Vantourout、Allan J. B. Watson
DOI:10.1002/ejoc.202200993
日期:2022.12.6
The direct Chan–Lamcoupling of arylboronicacid methyliminodiacetic acid esters (ArBMIDA) with amine and alcohol nucleophiles is reported. Limitations of the process are also discussed. We also demonstrate how this method can be used in the chemoselective synthesis of heterocyclic scaffolds by using the unique attributes of the BMIDA protecting group.