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C2-Symmetric Bissulfoximines as Ligands in Copper-Catalyzed Enantioselective Diels—Alder Reactions.

✍ Scribed by Carsten Bolm; Marc Martin; Oliver Simic; Marinella Verrucci

Publisher
John Wiley and Sons
Year
2003
Weight
131 KB
Volume
34
Category
Article
ISSN
0931-7597

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📜 SIMILAR VOLUMES

Ethylene-Bridged Bissulfoximines in Copp
Ethylene-Bridged Bissulfoximines in Copper-Catalyzed Enantioselective Hetero-Diels--Alder Reactions
✍ Carsten Bolm; Marinella Verrucci; Oliver Simic; Christian P. R. Hackenberger 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 81 KB 👁 1 views

## Abstract Ethylene‐bridged bissulfoximines were applied as chiral ligands in copper‐catalyzed enantioselective hetero‐Diels–Alder reactions. After optimization of the reaction conditions, products with up to 99% ee were obtained.

C1-Symmetric Versus C2-Symmetric Ligands
C1-Symmetric Versus C2-Symmetric Ligands in Enantioselective Copper–Bis(oxazoline)-Catalyzed Cyclopropanation Reactions
✍ José M Fraile; José I. García; Anja Gissibl; José A. Mayoral; Elísabet Pires; Ol 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 496 KB

## Abstract A thorough experimental and theoretical study of the enantioselective cyclopropanation of alkenes catalyzed by chiral bis(oxazoline)– and azabis(oxazoline)–copper complexes, which comprise a new family of ligands that lack __C__~2~ symmetry, has been conducted. Surprisingly high enantio