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Full Paper
High-Surface-Area SiO2–ZrO2 Mixed Oxides as Catalysts for the Friedel–Crafts-Type Alkylation of Arenes with Alcohols and Tandem Cyclopropanation Reactions
Article first published online: 2 JUL 2012
DOI: 10.1002/cctc.201200175
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Kaper, H., Bouchmella, K., Mutin, P. H. and Goettmann, F. (2012), High-Surface-Area SiO2–ZrO2 Mixed Oxides as Catalysts for the Friedel–Crafts-Type Alkylation of Arenes with Alcohols and Tandem Cyclopropanation Reactions. ChemCatChem, 4: 1813–1818. doi: 10.1002/cctc.201200175
Publication History
- Issue published online: 25 OCT 2012
- Article first published online: 2 JUL 2012
- Manuscript Received: 23 MAR 2012
Funded by
- CNRS-Max Planck Postdoctoral Programme on Nanomaterials
Keywords:
- alkylation;
- mesoporous materials;
- mixed oxides;
- tandem reactions;
- trans-hydrogenation
Abstract
The catalytic activity of SiO2–ZrO2 mixed oxides was studied for the Friedel–Crafts-alkylation reaction between anisole and benzylic or allylic alcohols. In particular, the influence of Zr content on the catalytic activity was studied. The catalyst with the lowest Zr content (5 mol % ZrO2) showed the highest activity with high selectivity for the alkylated product and good recyclability. We used this catalyst in the reaction of 1-phenyl-1-ethanol with toluene and xylene. We also studied the possibility of a tandem process that involved a Friedel–Crafts alkylation and the subsequent trans-hydrogenation of trans-1,3-diphenyl-2-propen-1-ol for the synthesis of substituted cyclopropanes.