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Electron-poor benzonitriles as labile, stabilizing ligands in asymmetric catalysis
Jennifer J Becker1, Lori J Van Orden, Peter S White
1Department of Chemistry CB #3290, University of North Carolina, Chapel Hill, North Carolina 27599-3290, USA.
Organic Letters
|March 1, 2002
Abstract:
[structure: see text] A chiral palladium catalyst [(S)-MeObiphep)Pd(NCAr)2(SbF6)2, (S)-4c], has been developed for a variety of asymmetric transformations. (S)-4c is bench-stable and has activity comparable to that of the nitrile free Lewis acid catalyst for Diels-Alder, hetero-Diels-Alder, and glyoxylate-ene reactions.