Zinc Complexes of Sequential Tetradentate Monoanionic Ligands in the Isoselective Polymerization of rac-Lactide

Tomer Rosen, Yanay Popowski, Israel Goldberg, Moshe Kol*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

Zinc complexes of {ONNN}-type sequential tetradentate monoanionic ligands reacted with diethylzinc to give the mononuclear ethylzinc complexes. The benzyloxy complexes were formed readily and were found to be highly active as well as living/immortal catalysts for ring-opening polymerization of rac-lactic acid with a clear isospecific inclination. Chiral gas chromatography analysis revealed a mild preference for a given lactide enantiomer by the chiral catalysts.

Original languageEnglish
Pages (from-to)11533-11536
Number of pages4
JournalChemistry - A European Journal
Volume22
Issue number33
DOIs
StatePublished - 8 Aug 2016

Keywords

  • enantioselectivity
  • gas chromatography
  • ligand design
  • ring-opening polymerization
  • zinc

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