Amino acids as chiral anionic ligands for ruthenium based asymmetric olefin metathesis.

نویسندگان

  • Elisa Ivry
  • Amos Ben-Asuly
  • Israel Goldberg
  • N Gabriel Lemcoff
چکیده

Several amino acid ligands were introduced into the Hoveyda-Grubbs 2nd generation complex by a facile anionic ligand exchange. The chiral pre-catalysts obtained displayed enantioselectivity in asymmetric ring-closing and ring-opening cross-metathesis reactions. Reduction of the lability of the carboxylate ligands was found to be cardinal for improving the observed enantiomeric product enrichment.

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عنوان ژورنال:
  • Chemical communications

دوره 51 18  شماره 

صفحات  -

تاریخ انتشار 2015