Arabian Journal of Chemistry | |
MOF-253 immobilized Pd and Cu as recyclable and efficient green catalysts for Sonogashira reaction | |
Jianwei Xie1  Jie Zhang2  Nan Wang2  | |
[1] School of Chemistry and Chemical Engineering/The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China;College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425199, China; | |
关键词: MOF-253; Immobilized Pd and Cu catalysts; Sonogashira coupling reaction; Green heterogeneous catalyst; Terminal alkynes; | |
DOI : | |
来源: DOAJ |
【 摘 要 】
MOF-253·Pd(OAc)2 and MOF-253·CuI were prepared, characterized, and evaluated firstly as heterogeneous co-catalysts, which showed high catalytic activity in Sonogashira coupling reaction of various substituted (hetero)aryl halides with terminal alkynes at 70–120 °C, and afforded the corresponding products in 45–99% yields with high TON (∼2722 for Pd). The best result was achieved with an extremely low Pd (0.036 mol%) and Cu (0.397 mol%) loading. Moreover, the catalysts can be reused at least five times without significantly reducing the activity. Besides, Hg(0) and PVP-poisoning experiments confirmed that the present catalysts were efficient and heterogeneous catalysts in this coupling reaction.
【 授权许可】
Unknown