New facets of an old ligand: titanium and zirconium complexes of phenylenediamine bis(phenolate) in lactide polymerisation catalysis.

نویسندگان

  • Ayellet L Zelikoff
  • Jacob Kopilov
  • Israel Goldberg
  • Geoffrey W Coates
  • Moshe Kol
چکیده

Phenylenediamine bis(phenolate) binds in the reduced dianionic form to titanium and zirconium alkoxides giving either mononuclear or bridging dinuclear complexes depending on the metal precursors; the fluxional mononuclear titanium complex is found to exhibit extremely high activity in polymerisation of rac-lactide in the melt.

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عنوان ژورنال:
  • Chemical communications

دوره 44  شماره 

صفحات  -

تاریخ انتشار 2009