less reactive aryl bromides as arylating reagents in the Pd(II)-catalyzed intermolecular arylation of unactivated C(sp3)–Hbonds is described. This reaction was promoted by a crucial 8-aminoquinolinyl directing group and a K2CO3 base, enabling regiospecific installation of an aryl scaffold at the β-position of carboxamides. A mechanistic study by DFT calculations reveals a C(sp3)–H activation-led
描述了在Pd(II)催化的未活化C(sp 3)-H键的分子间芳基化中使用容易获得的,反应性较低的芳基溴化物作为芳基化试剂的示例。至关重要的8-氨基喹啉基导向基团和K 2 CO 3碱促进了该反应,从而使芳基骨架可以在羧酰胺的β-位上进行区域特异性安装。通过DFT计算进行的机理研究揭示了C(sp 3)–H活化为主导的途径,该途径的特征是氧化加成为最高能量跃迁状态。