Catalytic epoxidations with pyridinebis(oxazoline)-methyltrioxorhenium complexes and nitrogen-containing catalyst systems

Konstanze Kiersch, Yuehui Li, Kathrin Junge, Normen Szesni, Richard Fischer, Fritz E. Kühn, Matthias Beller

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

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. The epoxidation of 1-octene using methyltrioxorhenium (MTO) in the presence of pyridinebis(oxazoline) and related ligands is reported. Although excellent chemoselectivity (>90 %) and good yields were obtained, low enantioselectivity was observed.

Original languageEnglish
Pages (from-to)5972-5978
Number of pages7
JournalEuropean Journal of Inorganic Chemistry
Issue number36
DOIs
StatePublished - Dec 2012
Externally publishedYes

Keywords

  • Alkenes
  • Epoxidation
  • Homogeneous catalysis
  • N ligands
  • Rhenium

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