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Chiral tertiary amine N-oxides in asymmetric epoxidation of α,β-unsaturated ketones

✍ Scribed by Kyungsoo Oh; Jinhyang Ryu

Publisher
Elsevier Science
Year
2008
Tongue
French
Weight
118 KB
Volume
49
Category
Article
ISSN
0040-4039

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✦ Synopsis

Chiral tertiary amine N-oxides have been shown to undergo stereoselective oxygen transfer reaction in the epoxidation of chalcone derivatives with modest to good enantioselectivity.

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Amine-Catalyzed Asymmetric Epoxidation o
Amine-Catalyzed Asymmetric Epoxidation of α,β-Unsaturated Aldehydes
✍ Gui-Ling Zhao; Ismail Ibrahem; Henrik Sundén; Armando Córdova 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 260 KB 👁 1 views

## Abstract The direct organocatalytic enantioselective epoxidation of α,β‐unsaturated aldehydes with different peroxides is presented. Proline, chiral pyrrolidine derivatives, and amino acid‐derived imidazolidinones catalyze the asymmetric epoxidation of α,β‐unsaturated aldehydes. In particular, p