Article ID Journal Published Year Pages File Type
67854 Journal of Molecular Catalysis A: Chemical 2008 8 Pages PDF
Abstract

The efficient and high yielding domino epoxidation–methanolysis of glycals has been achieved under environment friendly conditions by oxidation with urea hydrogen peroxide adduct (UHP) and H2O2 in ionic liquids (ILs) catalyzed by methyltrioxorhenium and different heterogeneous methyltrioxorhenium derivatives. The facial diastereoselectivity of the oxidation ranged from satisfactory to excellent ones depending on the substrate and could be optimized by ample screening of catalysts. The oxidations performed with UHP proceeded with a higher degree of diastereoselectivity than those performed with H2O2. High yields of products and conversions of substrates were obtained under mild experimental conditions and by the use of simple work-up procedures.

Graphical abstractThe efficient and high yielding domino epoxidation–methanolysis of glycals has been achieved under environment friendly conditions by oxidation with UHP and H2O2 in ionic liquids (ILs) catalyzed by methyltrioxorhenium and different heterogeneous methyltrioxorhenium derivatives. Figure optionsDownload full-size imageDownload as PowerPoint slide

Related Topics
Physical Sciences and Engineering Chemical Engineering Catalysis
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