文档介绍：
******@MC 催化剂催化 Suzuki-Miyaura 反应
研究#
苏向阳,韩素珍,钟琳**
5
10
(四川大学化学工程学院,成都 610065)
摘要:本文以 SBA-15 为模板,糠醇为碳源,氯化钯为钯源,通过一步法合成了嵌埋于中孔
碳骨架的 Pd 催化剂 ******@MC。TEM 表征显示纳米 Pd 催化剂均匀分布于中孔碳载体上,催
化剂的 XPS 则表明 Pd 主要以零价形式存在。研究表明,在温和的反应条件下,催化剂用量
较低(2 mol% Pd),催化剂在催化溴代芳烃与苯硼酸的 Suzuki-Miyaura 反应中表现出优异的
催化性能,可得到 100%转化率和大于 95%的选择性。催化活性中心在反应中不流失,催化剂
可便利回收,循环使用三次以上而其催化性能基本维持不变。
关键词:催化;Pd;中孔碳;负载;Suzuki-Miyaura 反应
中图分类号:
15
******@MC Catalysts for Suzuki-Miyaura Reaction
SU Xiangyang, HAN Suzhen, ZHONG Lin
(College of Chemical Engineering, Sichuan University, Chengdu 610065)
Abstract: A nano carbon-embedded Pd catalyst was synthesized via one-pot reaction using
20
25
SBA-15, furfuryl alcohol and PdCl2 as template, carbon source and palladium source, respectively.
The result of TEM shows that Pd nanoparticles distribute homogeneously on the surface of nano
carbon and the XPS for the catalyst indicates that Pd exists int the form of Pd (0). With a low
loading of the catalyst (2 mol % Pd ), ******@MC shows highly conversions (100%) and selectivities
(> 95%) in the Suzuki-Miyaura reactions of acyl halides and phenylbronic acid runder a mild
reaction condition. There is no leaching of cataltst in the reaction and the catalyst can be recycled
for up to three times without loss of reactivity.
Key words: Catalysis; Pd; Mesoporous Carbon; Supported; Suzuki-Miyaura Reaction
0 引言
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Suzuki-Mi