Mechanisms in manganese oxidation catalysis with 1,4,7-triazacyclononane based ligands

Johann B. Kasper, Jorn D. Steen, Ronald Hage, Wesley R. Browne*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

1 Citation (Scopus)

Abstract

The first report of catalytic activity of manganese complexes based on the ligand N,N′,N″-trimethyl-1,4,7-triazacyclononane (Me3tacn) in oxidations with H2O2 was in the mid-1990s. Although initially limited by extensive disproportionation of H2O2, within a short time solvents and additives were identified that could suppress this wasteful side reaction. These initial successes spurred more general interest in these complexes and over the following quarter century efforts toward broadening substrate scope and controlling (enantio)selectivity have revealed their versatility. In parallel considerable effort has been directed to elucidate the species that can form under a wide range of conditions both for their relevance to bioinorganic chemistry (enzymes and the oxygen evolving complexes) and to identifying species formed during oxidation reactions. In this chapter, the focus is on the spectroscopy and electrochemistry of these complexes and mechanistic insight gained over the last 25 years.

Original languageEnglish
Title of host publicationRecent Highlights I
EditorsColin D. Hubbard, Rudi van Eldik
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Chapter5
Pages143-182
Number of pages40
ISBN (Print)9780323851152
DOIs
Publication statusPublished - Jan-2021

Publication series

NameAdvances in Inorganic Chemistry
Volume78
ISSN (Print)0898-8838

Keywords

  • Catalysis
  • Epoxidation
  • Manganese
  • Oxidation
  • Triazacyclononane

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