Highly selective olefin epoxidation with aqueous H2O2 over surface-modified TaSBA15 prepared via the TMP method

Daniel A. Ruddy; T. Don Tilley

doi:10.1039/B706443H

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Highly selective olefin epoxidation with aqueous H₂O₂ over surface-modified TaSBA15 prepared via the TMP method†

Daniel A. Ruddy^ab and T. Don Tilley*^ab

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* Corresponding authors

^a Department of Chemistry, University of California, Berkeley, Berkeley, California, USA
E-mail: tdtilley@berkeley.edu

^b Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California, USA

Abstract

Trialkylsiloxy-modified Ta(V) centers on mesoporous silica exhibit excellent selectivity for epoxide formation (>98% after 2 h) in the oxidation of cyclohexene using aqueous H₂O₂ as the oxidant; the modified catalysts exhibit an increased lifetime, retaining high selectivity after 6 h of reaction (>95% epoxide).

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Supplementary files

Experimental details; N ₂ porosimetry isotherms; PXRD data; DSC traces of water desorption; solid-state ²⁹Si MAS NMR spectra; selected kinetic plots for cyclohexene oxidation PDF (707K)

Article information

DOI: https://doi.org/10.1039/B706443H
Article type: Communication
Submitted: 30 Apr 2007
Accepted: 06 Jul 2007
First published: 17 Jul 2007

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Chem. Commun., 2007, 3350-3352

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Highly selective olefin epoxidation with aqueous H₂O₂ over surface-modified TaSBA15 prepared via the TMP method

D. A. Ruddy and T. D. Tilley, Chem. Commun., 2007, 3350 DOI: 10.1039/B706443H

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