作者:Atanu Modak、Alex J. Nett、Elizabeth C. Swift、Michael C. Haibach、Vincent S. Chan、Thaddeus S. Franczyk、Shashank Shekhar、Silas P. Cook
DOI:10.1021/acscatal.0c02965
日期:2020.9.18
reemerged as a viable alternative to the versatile Pd-catalyzed C–N coupling. Coupling sterically hindered reaction partners, however, remains challenging. Herein, we disclose the discovery and development of a pyrrole-ol ligand to facilitate the coupling of ortho-substituted aryl iodides with sterically hindered amines. The ligand was discovered through a library screening approach and highlights the
铜是一种地球储量丰富的金属,已重新成为多功能 Pd 催化的 C-N 偶联的可行替代品。然而,偶联位阻反应伙伴仍然具有挑战性。在此,我们公开了吡咯醇配体的发现和开发,以促进邻位取代的芳基碘化物与空间位阻胺的偶联。该配体是通过文库筛选方法发现的,突出了挖掘富含杂原子的药物文库以寻找有用的配体基序的价值。进一步评估表明,该配体在这些具有挑战性的转化中具有独特的有效性。该反应能够偶联空间位阻伯胺和仲胺、苯胺和具有广泛官能团耐受性的酰胺。