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On the chloride lability in electron-rich second-generation ruthenium benzylidene complexes

Monatshefte fur Chemie, ISSN: 0026-9247, Vol: 146, Issue: 7, Page: 1143-1151
2015
  • 15
    Citations
  • 0
    Usage
  • 9
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    15
    • Citation Indexes
      15
  • Captures
    9

Article Description

A series of electron-rich second-generation cis-dichloro ruthenium aldehyde-chelating benzylidene complexes was prepared, characterized, and tested in typical ring-opening metathesis polymerization (ROMP) experiments. The benzylidene precursors were prepared via etherification of the hydroxyl group and vinylation at position 2 of 2-bromo-5-hydroxy-4-methoxybenzaldehyde. The corresponding ruthenium complexes were obtained from a carbene exchange reaction and were characterized by a cis-dichloro arrangement. A pronounced lability of the chloride ligand trans to the N-heterocyclic carbene ligand in methanol was observed and it was shown that this feature is responsible for a particularly slow ROMP in this solvent. Graphical abstract: [Figure not available: see fulltext.]

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