Huo Hui-Fang, Liu Dan, Bao Agula, Muschin Tegshi, 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.
ACS Omega. 2022 Apr 7;7(15):12779-12786. doi: 10.1021/acsomega.1c07342. eCollection 2022 Apr 19.
Carbon, an abundant, inexpensive, and nonmetallic material, is an inimitable support in heterogeneous catalysis, and variable carbonaceous materials have been utilized to support metal nanoparticle catalysts. We developed an efficient and stable heterogeneous catalyst with highly dispersed metallic palladium nanoparticles embedded in an ordered pore channel of mesoporous carbon and first applied the catalyst to construct imides from amides using aryl esters as an acylation reagent via C-O activation. The catalyst represents excellent catalytic performance and could be reused and recycled five times without any significant decrease in activity. The heterogeneous nature of metallic state palladium was proven to be the active center in the acylation reaction.
碳是一种丰富、廉价的非金属材料，在多相催化中是无可替代的载体，多种含碳材料已被用于负载金属纳米颗粒催化剂。我们开发了一种高效稳定的多相催化剂，其中高度分散的金属钯纳米颗粒嵌入介孔碳的有序孔道中，并首次将该催化剂用于以芳基酯为酰化试剂，通过C-O活化由酰胺构建酰亚胺。该催化剂表现出优异的催化性能，可重复使用和循环五次，活性无任何显著下降。金属态钯的多相性质被证明是酰化反应的活性中心。
