NDLI: Mesoporous Zr-SBA-15 as a green solid acid catalyst for the Prins reaction

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Catalysis Science & Technology Vol - 2 Issue - 6

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Mesoporous Zr-SBA-15 as a green solid acid catalyst for the Prins reaction

Content Provider	Royal Society of Chemistry (RSC)
Author	Jaenicke, Stephan Do, Dong Minh Chuah, Gaik-Khuan
Copyright Year	2012
Abstract	Mesoporous Zr-SBA-15 platelets were prepared with different pore dimensions from 4 to 8 nm by the simple procedure of varying the amount of water in the synthesis gel. Narrow pore size distributions were obtained for water–tetraethoxysilane ratios between 208 and 639, but samples formed using a lower ratio of 100 had a broad pore size distribution. Thermogravimetric measurements showed that the interaction between the Pluronic template and the inorganic framework was affected by the amount of water in the synthesis gel. More zirconium was incorporated into the silica framework when the synthesis was conducted in a more dilute system. The Zr-SBA-15 obtained from this synthesis forms platelets with relatively short channels. The catalytic activity was tested for C–C-coupling (Prins reaction). The terpene alcohol Nopol, the product of an intermolecular Prins reaction between β-pinene and paraformaldehyde, could be obtained with excellent selectivity. The mesoporous structure of the catalyst together with the presence of zirconium in the silica framework, which confers strong Lewis acidity as well as weak Brønsted acidic sites, are essential for the activity and selectivity of the reaction.
Starting Page	1417
Ending Page	1424
Page Count	8
File Format	HTM / HTML PDF
ISSN	20444753
Volume Number	2
Issue Number	7
Journal	Catalysis Science & Technology
DOI	10.1039/c2cy20084h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Prins Paraformaldehyde Mesoporous material Zirconium Terpene Nopol Lewis Prins reaction Silicon dioxide Beta-Pinene
Content Type	Text
Resource Type	Article
Subject	Catalysis

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