期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 2, 页码 484-491出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta13446f
关键词
-
资金
- Natural Science Foundation of China [21107071, 51273112]
- PCSIRT [IRT1269]
- Shanghai Government [10dj1400100, 13QA1402800, 12CG52]
A new strategy of bonding organometallics to an MCM-41 thin layer coated onto Fe3O4 microspheres with strong magnetism, denoted as M-PPh2-MCM-41@SiO2@Fe3O4, where M = Pd(II) and Rh(I), has been developed for the immobilization of homogeneous catalysts. In comparison with the traditional M-PPh2-MCM-41 catalysts with irregular shapes and the M-PPh2-SiO2@Fe3O4 without an ordered mesoporous structure, the current catalysts exhibited much higher activities for various water-based Suzuki, Sonogashira and Miyaura-Michael organic reactions, due to the high dispersion of active sites and the uniform catalyst particles with short-ordered mesopores favoring reactant diffusion and adsorption. Their catalytic efficiencies are comparable with those of the homogeneous catalysts, and they could be easily recycled for reuse by simply applying an external magnet.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据