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Title: Cr-III(salen) impregnated on silica for asymmetric ring opening reactions and its recovery via desorption/re-impregnation
Authors: Dioos, BML ×
Jacobs, Pierre #
Issue Date: 2003
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Series Title: Tetrahedron letters vol:44 issue:49 pages:8815-8817
Conference: date:Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, B-3001 Heverlee, Belgium
Abstract: The impregnation of Cr-III(salen) complexes on silica resulted in a heterogeneous catalyst for the asymmetric ring opening (ARO) reaction of epoxides with good selectivity and acceptable activity. As became apparent from a series of 10 successive batch tests in the ARO reaction of 1,2-epoxyhexane, leaching was limited, while catalytic activity and selectivity were acceptable. Though the support suffered from abrasion in the batch reactor, 80% of the catalyst was easily recoverable via simple extraction from the used solid catalyst and entirely transferable onto a fresh carrier via impregnation. It was shown that 80% of the leached catalyst at the end of the tests could be transformed into a fresh heterogeneous catalyst as well. (C) 2003 Elsevier Ltd. All rights reserved.
ISSN: 0040-4039
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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