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Title: Catalytic allylic oxidation of cyclohexene with air over
Authors: Zhang, Q
Xia, Q-H
Lu, X-H
Zhan, H-J
Xu, G
Issue Date: Jun-2007
Publisher: CSIR
IPC CodeInt. Cl. ⁸ B01J21/04; B01J23/26; B01J23/72; B01J23/745; B01J23/75; B01J23/755; B01J33/00; B01J37/02
Abstract: Catalytic allylic oxidation of cyclohexene with air to 2-cyclohexen-1-one and 2-cyclohexen-1-ol over Co/Al₂O₃ catalysts under mild conditions has been reported. A series of transition metal-containing Al₂O₃ samples such as Co/Al₂O₃, Ni/Al₂O₃, Cu/Al₂O₃, Fe/Al₂O₃ and Cr/Al₂O₃, have been prepared by wet impregnation of powdered pseudo-boehmite (Al₂O₃) support with aqueous metal-containing salt solutions, followed by drying at 413 K overnight and calcination at 823 K for 6 h. Only Co/Al₂O₃ shows good activity for the selective oxidation of cyclohexene by air to 2-cyclohexen-1-one and 2-cyclohexen-1-ol in DMF. Under identical conditions, 34.3 mol% of cyclohexene is catalytically converted by Co/Al₂O₃ to achieve 73.0% selectivity to 2-cyclohexen-1-one and 23.9% selectivity to 2-cyclohexen-1-ol, which is superior to other catalysts.
Page(s): 909-915
ISSN: 0376-4710
Source:IJC-A Vol.46A(06) [June 2007]

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