Journal
CATALYSIS COMMUNICATIONS
Volume 8, Issue 7, Pages 1132-1136Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2006.11.001
Keywords
co-salen; sol-gel; immobilization; oxidation; oxygen
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Salen ligand prepared from 1,2-phenylenediamine and 2-hydroxy-3(3-triethoxysilyl-propyl)-benzaldehyde has been used as cobalt-chelate for the immobilization of the catalytic site by a one-pot synthesis method. Sol-gel hydrolysis and polycondensation of this chelate with 10 equivalents of tetraethyl orthosilicate produced the heterogeneous catalyst. This catalyst is active in selective molecular oxygen oxidations of cyclohexane, cyclohexene, toluene, styrene and anthracene in the presence of butyraldehyde at room temperature. (C) 2006 Elsevier B.V. All rights reserved.
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