Solvent-free Heck reaction catalyzed by a recyclable Pd catalyst supported on SBA-15 via an ionic liquid

Heck arylation of olefins with aryl halides was carried out in solvent-free conditions with a Pd catalyst supported on 1,1,3,3-tetramethylguanidinium (TMG)-modified molecular sieve SBA-15 (designated as SBA-TMG-Pd). SBA-TMG-Pd was much more active and stable than a Pd catalyst supported on pristine...

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Bibliographic Details
Published in:Green chemistry : an international journal and green chemistry resource : GC 2008-01, Vol.10 (1), p.59-66
Main Authors: Ma, Xiumin, Zhou, Yinxi, Zhang, Jicheng, Zhu, Anlian, Jiang, Tao, Han, Buxing
Format: Article
Language:English
Subjects:
Catalysts
Fourier transforms
Infrared spectroscopy
Molecular sieves
Olefins
Palladium
Transmission electron microscopy
X-ray photoelectron spectroscopy
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Summary:Heck arylation of olefins with aryl halides was carried out in solvent-free conditions with a Pd catalyst supported on 1,1,3,3-tetramethylguanidinium (TMG)-modified molecular sieve SBA-15 (designated as SBA-TMG-Pd). SBA-TMG-Pd was much more active and stable than a Pd catalyst supported on pristine SBA-15 (designated as SBA-Pd). The catalysts were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM), and the reasons for the excellent performance of catalyst SBA-TMG-Pd were also discussed.
ISSN:1463-9262
1463-9270
DOI:10.1039/B712627A