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Catalytic Epoxidations with Pyridinebis(oxazoline)–Methyltrioxorhenium Complexes and Nitrogen-Containing Catalyst Systems

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Abstract

The epoxidation of olefins with methyltrioxorhenium (MTO) in the presence of various chiral oxazolines and pyridinebis(oxazoline) ligands as well as achiral N-ligands has been investigated. By applying 1-octene as a model system, reaction conditions were optimized, and high yields and good chemoselectivity (>90 %) were achieved. By applying other aromatic and aliphatic olefins, similar chemoselectivities and up to 19 % enantioselectivity were obtained.

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