Palladium-Catalyzed Aminocarbonylation of (Hetero)aryl Iodides with α-Amino Acid Esters as Nucleophiles
作者:Gajanan K. Rathod、Rahul Jain
DOI:10.1021/acs.joc.2c00635
日期:2022.6.17
We report palladium-catalyzed aminocarbonylation of (hetero)aryliodides with α-amino acid esters as nucleophiles. The synthesized N-capped α-amino acids are biologically important building blocks. The mild conditions provide products with high enantioselectivity at 80 °C in 35 min. The reactions are performed under air in a sealed vessel using chloroform as an in situ CO source. For the first time
我们报道了钯催化的(杂)芳基碘化物的氨基羰基化,α-氨基酸酯作为亲核试剂。合成的 N 封端 α-氨基酸是生物学上重要的组成部分。温和的条件可在 80°C 下 35 分钟内提供具有高对映选择性的产品。反应在密封容器中的空气下进行,使用氯仿作为原位 CO 源。还首次提出了组氨酸的区域选择性羰基化。
Two-Chamber Aminocarbonylation of Aryl Bromides and Triflates Using Amino Acids as Nucleophiles
A palladium(0)-catalyzed aminocarbonylationreaction employing molybdenum hexacarbonyl as a carbonmonoxide precursor for the production of N-capped amino acids using aryl and heteroaryl bromides and triflates is reported. The carbonmonoxide is formed ex situ through the use of a two-chamber system, where carbonmonoxide generated in one chamber is free to diffuse over and be consumed in the other