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Epoxidation of Olefins Catalyzed by a Molecular Iron N ‐Heterocyclic Carbene Complex: Influence of Reaction Parameters on the Catalytic Activity
Author(s) -
Kück Jens W.,
Raba Andreas,
Markovits Iulius I. E.,
Cokoja Mirza,
Kühn Fritz E.
Publication year - 2014
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201402063
Subject(s) - epoxide , catalysis , carbene , chemistry , olefin fiber , selectivity , yield (engineering) , ligand (biochemistry) , peroxide , organic chemistry , medicinal chemistry , materials science , biochemistry , receptor , metallurgy
The catalytic epoxidation of olefins by an iron(II) complex bearing a tetradentate bis(pyridyl‐ N ‐heterocyclic carbene) ligand was investigated. This is the first example of the use of an organometallic iron compound (i.e., with a FeC bond) as an olefin epoxidation catalyst. The catalyst system, used without additives, showed good epoxide yields and selectivity for various olefins after a reaction time of 5 min. It was found that the epoxide yield strongly depended on the amount of the peroxide used and its nature and noticeably increased at lower temperatures.