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Ligand-Catalyzed Asymmetric Alkynylboration of Enones: A New Paradigm for Asymmetric Synthesis Using Organoboranes.

✍ Scribed by T. Robert Wu; J. Michael Chong


Publisher
John Wiley and Sons
Year
2005
Weight
23 KB
Volume
36
Category
Article
ISSN
0931-7597

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New chiral ligands for the asymmetric co
✍ Eric L. Stangeland; Tarek Sammakia πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 French βš– 468 KB

The copper catalyzed conjugate addition of n-butyl Grignard to enones in the presence of chiral ferrocenyl phosphine oxazoline ligands has been studied and found to provide useful levels of asymmetric induction. A comparison of the ferrocene derived ligands 3 and 6 with the corresponding phenyl deri