Pd-PEPPSI-IPent<sup>An</sup> Promoted Deactivated Amination of Aryl Chlorides with Amines under Aerobic Conditions
作者:Fei-Dong Huang、Chang Xu、Dong-Dong Lu、Dong-Sheng Shen、Tian Li、Feng-Shou Liu
DOI:10.1021/acs.joc.8b01205
日期:2018.8.17
We report herein a highly efficient Pd-catalyzed amination by “bulky-yet-flexible” Pd-PEPPSI-IPentAn complexes. The relationship between the N-heterocyclic carbenes (NHCs) structure and catalytic properties was discussed. Sterically hindered (hetero)arylchlorides and a variety of aliphatic and aromatic amines can be applied in this cross-coupling, which smoothly proceeded to provide desired products
我们在此报告了一种由“大体积但还灵活”的Pd-PEPPSI-IPent An复合物进行的高效Pd催化胺化反应。讨论了N-杂环卡宾(NHCs)结构与催化性能之间的关系。可以在该交叉偶联中应用立体受阻的(杂)芳基氯化物以及各种脂肪族和芳香族胺,它们可以顺利进行以提供所需的产物。操作简单的协议强调了在不排除空气和水分的情况下,在温和条件下可快速获得C Ar -N键的形成。
Sterically Hindered Amination of Aryl Chlorides Catalyzed by a New Carbazolyl-Derived P,N-Ligand-Composed Palladium Complex
作者:Wing In Lai、Man Pan Leung、Pui Ying Choy、Fuk Yee Kwong
DOI:10.1055/s-0037-1611534
日期:2019.7
‡ These authors contributed equally to this work. Published as part of the Special Topic Amination Reactions in Organic Synthesis Abstract A family of 2-(9H-carbazol-9-yl)phenyl-based phosphine ligands were synthesized and their efficacy in promoting the steric hindered Buchwald–Hartwig amination was evaluated. In the presence of Pd(OAc)2 (0.03–1.0 mol%) associated with the newly developed a carbazolyl-derived