New zinc(II)-based catalyst for asymmetric azomethine ylide cycloaddition reactions


DOĞAN Ö., Koyuncu H., Garner P., BULUT A. , Youngs W. J. , Panzner M.

Organic Letters, vol.8, no.21, pp.4687-4690, 2006 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 8 Issue: 21
  • Publication Date: 2006
  • Doi Number: 10.1021/ol061521f
  • Title of Journal : Organic Letters
  • Page Numbers: pp.4687-4690

Abstract

(Chemical Equation Presented) A new chiral aziridino alcohol ligand for zinc(II)-catalyzed azomethine ylide cycloadditions is described. In the presence of this catalyst, N-arylidene glycine methyl esters react with a variety of dipolarophiles to give substituted pyrrolidines in very good to excellent chemical yields and up to 95% ee. The absolute sense of asymmetric induction appears to be dipolarophile-dependent. © 2006 American Chemical Society.