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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.46A [2007] >
IJC-A Vol.46A(06) [June 2007] >
| 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 Code: | Int. 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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