Palladium-catalyzed C–H activation of simple arenes and cascade reaction with nitriles: access to 2,4,5-trisubstituted oxazoles
作者:Ling Dai、Shuling Yu、Yinlin Shao、Renhao Li、Zhongyan Chen、Ningning Lv、Jiuxi Chen
DOI:10.1039/d0cc07547g
日期:——
readily available simple arenes and functionalized aliphatic nitriles. This transformation involves palladium-catalyzed C–H activation, carbopalladation and a tandem annulation sequence in one pot. Notably, the reaction proceeds efficiently under redox-neutral conditions, and exhibits high atom-economy. Deuterium-labeling experiments suggested that C–H bond cleavage of the simple arenes might be the rate-determining
首次从容易获得的简单芳烃和官能化的脂肪族腈中获得了一种用于组装具有药学和生物学价值的恶唑骨架的有效而直接的方法。这种转化涉及在一个锅中钯催化的C–H活化,碳钯和串联环化序列。值得注意的是,该反应在氧化还原中性条件下有效地进行,并且展现出高的原子经济性。氘标记实验表明,简单芳烃的C–H键断裂可能是决定速率的步骤。