期刊
APPLIED ORGANOMETALLIC CHEMISTRY
卷 35, 期 2, 页码 -出版社
WILEY
DOI: 10.1002/aoc.6078
关键词
Heck reaction; heterogenized catalyst; Hiyama reaction; magnetic mesoporous silica
资金
- Graduate Council of the University of Mohaghegh Ardabili
The magnetic mesoporous silica composite was prepared by embedding magnetite nanoparticles between SBA-15 channels and complexing with Pd(II). The supported Pd(II) catalyst showed high activity in Heck and Hiyama reactions, with better results observed for aryl bromides and iodides, and exhibited noticeable stability and reusability.
Magnetic mesoporous silica composite (MNP@SiO2-SBA) was obtained via embedding magnetite nanoparticles between SBA-15 channels. It was silylated with N-(3-(trimethoxysilyl)propyl)picolinamide (TMS-PCA) and then complexed with Pd(II). The obtained supported Pd(II) catalyst (MNP@SiO2-SBA-PCA) was characterized by conventional methods. The prepared magnetic catalyst showed high activity in the Heck and Hiyama reactions under optimal reaction conditions, including solvent, amount of catalyst, base, and temperature. Aryl bromides and iodides showed better results than aryl chlorides, and the catalyst exhibited noticeable stability and reused several times.
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