Immobilization and continuous recycling of photoredox catalysts in ionic liquids for applications in batch reactions and flow systems: Catalytic alkene isomerization by using visible light

David C. Fabry, Meria A. Ronge, Magnus Rueping*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

A catalytic (E)- to (Z)-isomerization of olefins using a photoredox catalyst under mild reaction conditions is presented. A variety of (Z)-alkenes can be prepared in the presence of visible light. A new reaction system allows an easy and efficient scale-up, as well as a continuous flow process in which the photocatalyst is immobilized in an ionic liquid and continuously recycled by simple phase separation. Catalytic (E)- to (Z)-isomerizations of olefins under mild conditions can be achieved by use of a photosensitizer and visible light. A new reaction system such as depicted allows an easy and efficient scale-up, as well as continuous flow processes in which the photocatalyst is immobilized in an ionic liquid and continuously recycled by phase separation.

Original languageEnglish (US)
Pages (from-to)5350-5354
Number of pages5
JournalChemistry - A European Journal
Volume21
Issue number14
DOIs
StatePublished - Mar 27 2015

Keywords

  • flow chemistry
  • immobilization
  • ionic liquids
  • isomerization
  • photocatalyst

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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