Journal
CATALYSIS COMMUNICATIONS
Volume 9, Issue 13, Pages 2239-2243Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2008.05.004
Keywords
secondary alcohol oxidation; poly(ethylene glycol); carbon dioxide; cobalt
Categories
Ask authors/readers for more resources
The aerobic oxidation of benzhydrol, 1-phenylethanol and cyclohexanol to corresponding ketones was carried out in poly(ethylene glycol) (PEG-600)/supercritical CO2 (SCCO2) biphasic system using unsupported and supported CoCl2 center dot 6H(2)O as the catalysts. It was demonstrated that CoCl2 center dot 6H(2)O, Co(II)/Al2O3, and Co(II)/ZnO were all active and selective for the reactions. The reactivity of the substrates followed the order benzhydrol > 1-phenylethanol > cyclohexanol. Co(II)/ZnO was most stable and could be reused four times without considerable reduction of activity. The effect of CO2 pressure, reaction time and solvent was further investigated. The Co(II)/ZnO/PEG-600 system is active, selective, cheap, clean, and recyclable for the aerobic oxidation of secondary alcohols. (C) 2008 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available