摘要
报道了一种纳米金催化(杂环)芳基酯与卤代烷经由C—O键活化的酯交换反应.在一系列负载金纳米颗粒和钯纳米颗粒催化剂中,粒径为3.63nm,负载量为3wt%的Au/γ-Al2O3催化剂表现出最佳催化活性.该催化剂重复使用五次后仍表现出较高活性.对反应前后催化剂的X射线光电子能谱(XPS)分析表明,该反应可能是通过以Au0为始态的催化循环来进行的.
Nano-gold catalyzed transesterification of the (hetero)aryl ester with alkyl halides via C-O activation has been developed. In a series of supported AuNPs and PdNPs, the Au/γ-Al2O3 catalyst with an AuNP mean diameter of 3.63 nm and 3 wt% Au loading exhibited the best catalytic performance. The catalyst can be reused and shows high activity after five cycles. The X-ray photoelectron spectroscopy (XPS) analysis of the catalyst before and after the reaction suggested that the reaction might be performed via a catalytic cycle that began with Au0 .
作者
麻鸿鹏
白朝鲁门
包永胜
Ma Hongpeng;Bai Chaolumen;Bao Yongsheng(College of Chemistry and Environmental Science,Inner Mongolia Key Laboratory of Green Catalysis,Inner Mongolia Normal University,Hohhot 010022)
出处
《有机化学》
SCIE
CAS
CSCD
北大核心
2019年第3期734-746,共13页
Chinese Journal of Organic Chemistry
基金
Project supported by the National Natural Science Foundation of China(Nos.21462031,21861030)
the Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region(No.NJYT-17-A22)
the Project of Inner Mongolia Normal University(No.2013ZRYB10)~~