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Synlett 2002(3): 0367-0380
DOI: 10.1055/s-2002-20447
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© Georg Thieme Verlag Stuttgart · New York

Peroxide Reactions with Anion-exchanged Layered Double Hydroxide Catalysts

Dirk E. De Vos, Joos Wahlen, Bert F. Sels*, Pierre A. Jacobs
Centre for Surface Chemistry and Catalysis, K.U.Leuven, Kasteelpark Arenberg 23, 3001 Leuven, Belgium
Fax: +32(16)321998; e-Mail: dirk.devos@agr.kuleuven.ac.be;
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Publication History

Received 13 August 2001
Publication Date:
05 February 2007 (online)

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Abstract

Layered double hydroxides (LDHs) are inorganic anion exchangers with basic surface properties. Combination of these LDHs with d0 oxy-anions leads to a class of oxidatively stable and leak-free heterogeneous oxidation catalysts. Using peroxides as the oxidant, WO4 2--LDH and V10O28 6--LDH catalyze epoxidations; WO4 2--LDH effects bromide oxidation and bromide-assisted epoxidation; MoO4 2--LDH is an inorganic generator of 1O2 from H2O2. The properties of these LDH catalysts can be finely adjusted in order to perform synthetically useful reactions.

Key words

catalysis - layered double hydroxides (LDH) - tungsten - molybdenum - singlet oxygen - halogenation

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Sels, B. F.; De Vos, D. E.; Jacobs, P. A. Catal. Rev.-Sci. Eng. 2001 (in press).