Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
56246 | Catalysis Today | 2010 | 7 Pages |
Abstract
A novel defined iron catalyst for the epoxidation of aromatic and aliphatic olefins with hydrogen peroxide as the terminal oxidant is described. Our catalyst approach is based on bio-inspired both alkyl- and aryl-substituted imidazoles in combination with cheap and abundant iron trichloride hexahydrate. Heterocycles similar to imidazole can be used as ligands in this epoxidation system, too. The novel system is stable towards air and water. It is shown that the mechanism depends strongly on the used ligands and substrates. In the presence of radical scavengers no carbon-centered radical could be detected.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Kristin Schröder, Kathrin Junge, Anke Spannenberg, Matthias Beller,