Ma Hongpeng, Bai Chaolumen, Bao Yong-Sheng
College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Green Catalysis, Inner Mongolia Normal University Hohhot 010022 China
RSC Adv. 2019 Jun 3;9(30):17266-17272. doi: 10.1039/c9ra02394a. eCollection 2019 May 29.
A site-selective supported palladium nanoparticle catalyzed Suzuki-Miyaura cross-coupling reaction with heteroaryl esters and arylboronic acids as coupling partners was developed. This methodology provides a heterogeneous catalytic route for aryl ketone formation C(acyl)-O bond activation of esters by successful suppression of the undesired decarbonylation phenomenon. The catalyst can be reused and shows high activity after eight cycles. The XPS analysis of the catalyst before and after the reaction suggested that the reaction might be performed a Pd/Pd catalytic cycle that began with Pd.
开发了一种以杂芳基酯和芳基硼酸作为偶联伙伴的位点选择性负载钯纳米颗粒催化的铃木-宫浦交叉偶联反应。该方法通过成功抑制不期望的脱羰现象，为芳基酮的形成提供了一条非均相催化途径，实现了酯的C(酰基)-O键活化。该催化剂可重复使用，经过八个循环后仍显示出高活性。反应前后催化剂的XPS分析表明，反应可能是通过以Pd开始的Pd/Pd催化循环进行的。
