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Synlett 2001; 2001(1): 0102-0104
DOI: 10.1055/s-2001-9708
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A Comparison of the Activity of Polymer Immobilised TEMPO (PIPO) with MCM-41 and Silica Supported TEMPO as Heterogeneous Catalysts for the Oxidation of Alcohols

Arné Dijksman* , Isabel W. C. E. Arends, Roger A. Sheldon
  • *Laboratory for Organic Chemistry & Catalysis, Department of Biotechnology, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands; Fax +31(0)15 278 1415; E-mail: secretariat-ock@tnw.tudelft.nl
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Publication Date:
31 December 2001 (online)

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PIPO, a readily prepared polymer immobilised TEMPO, is an efficient recyclable heterogeneous catalyst for the chlorinated hydrocarbon solvent- and bromide-free bleach oxidation of a variety of alcohols. Under these environmentally friendly conditions, PIPO is superior to homogeneous TEMPO and the previously described MCM-41 and silica supported TEMPO catalysts. In addition, in combination with CuCl, PIPO is also able to catalyse the aerobic oxidation of benzyl alcohol.

alcohols - catalysis - halides - nitroxyl - oxidations