P-Tu-B-34 Comparison of Homogeneous and Supported Vanadium(IV) Catalysts: Tailoring Oxidation Selectivity Via Immobilization

Tuesday, June 16, 2015
Ballroom B (Lawrence Convention Center)
Stephanie Goubert-Renaudin and Susannah L. Scott, University of California Santa Barbara, USA.
The selectivity of benzylalcohol oxidation catalyzed by VO(acac)2 with t-butylhydroperoxide is lowered by decarbonylation of benzaldehyde generating benzene. Immobilization of VO(acac)2 onto silica improves selectivity toward benzaldehyde over benzoic acid, but decarbonylation still occurs. Immobilization onto aminopropyl-silica lowers the conversion, but at low vanadium content, no benzene is formed.

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