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ChemInform Abstract: Catalytic Asymmetric 1,3-Dipolar Cycloaddition Reaction of Nitrones with α′-Phosphoric Enones by a Chiral Ligand-Copper(II) Triflate Complex.

✍ Scribed by Kyoung-Chan Lim; Young-Taek Hong; Sunggak Kim

Publisher
John Wiley and Sons
Year
2008
Weight
66 KB
Volume
39
Category
Article
ISSN
0931-7597

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Abstract

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Catalytic Asymmetric 1, 3-Dipolar Cycloa
Catalytic Asymmetric 1, 3-Dipolar Cycloaddition Reaction of Nitrones with α′-Phosphoric Enones by a Chiral Ligand- Copper(II) Triflate Complex
✍ Kyoung-Chan Lim; Young-Taek Hong; Sunggak Kim 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 212 KB 👁 1 views

## Abstract Using the __C__~2~‐symmetric bis‐oxazoline copper(II) catalyst **6f** as a chiral Lewis acid, α′‐phosphoric enones **2** undergo 1,3‐dipolar cycloaddition with nitrones **3** to provide isoxazolidines **4** with very high enantioselectivity and __endo/exo__ selectivity.