Journal
APPLIED CATALYSIS A-GENERAL
Volume 360, Issue 2, Pages 171-176Publisher
ELSEVIER
DOI: 10.1016/j.apcata.2009.03.021
Keywords
Methyltrioxorhenium; Heterogeneous catalysis; Epoxidation of terpenes; Ionic liquids
Categories
Funding
- PNR-FIRB
- ASI
- EU COST System Chemistry [CM07035]
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A convenient and efficient synthesis of monoterpene epoxides by application of methyltrioxorhenium and heterogeneous poly(4-vinylpyridine)/methyltrioxorhenium and microencapsulated polystyrene/methyltrioxorhenium catalytic systems in ionic liquids is described here. It was found that even highly sensitive terpenic epoxides were obtained in excellent yields. Environmentally friendly, easily available and low cost (UHP) urea hydrogen peroxide adduct was used as the primary oxidant. Catalysts were stable systems for at least four recycling oxidations. Experimental results showed that the reactions performed in ionic liquids were more selective and efficient than the ones performed in molecular solvents. (c) 2009 Elsevier B.V. All rights reserved.
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