An indole-amide-based phosphine ligand enabling a general palladium-catalyzed sterically hindered Suzuki–Miyaura cross-coupling reaction
作者:Shan Shan Ng、Zicong Chen、On Ying Yuen、Chau Ming So
DOI:10.1039/d1ob02294f
日期:——
A novel family of indole-amide-based phosphine ligands was designed and synthesized. The Pd/InAm-phos (L1) catalytic system exhibited excellent efficiency in the Suzuki–Miyaura cross-coupling of sterically hindered (hetero)aryl chlorides to synthesize tri-ortho-substituted biaryls. Excellent product yields were obtained in a short reaction time (e.g., 10 min), and a Pd catalyst loading down to 50 ppm