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Chiral Dirhodium(II) Catalysts with Ortho-Metalated Arylphosphine Ligands: Synthesis and Application to the Enantioselective Cyclopropanation of α-Diazo Ketones

✍ Scribed by Barberis, Mario; Pérez-Prieto, Julia; Herbst, Konrad; Lahuerta, Pascual

Book ID
121450589
Publisher
American Chemical Society
Year
2002
Tongue
English
Weight
102 KB
Volume
21
Category
Article
ISSN
0276-7333

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A highly regio-, diastereo- and enantios
A highly regio-, diastereo- and enantioselective intramolecular cyclopropanation reaction of a racemic α-diazo ketone catalyzed by chiral ortho-metalated dirhodium(II) compounds
✍ Julia Pérez-Prieto; Salah-Eddine Stiriba; Eduardo Moreno; Pascual Lahuerta 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 110 KB

A series of racemic dirhodium(II) compounds with two ortho-metalated aryl phosphine ligands in a head-to-tail arrangement Rh 2 (O 2 CR) 2 (pc) 2 (pc=ortho-metalated aryl phosphine) (1a-k) were tested in the regio-and stereoselective cyclopropanation of racemic 1-diazo-6-methyl-3-(2-propenyl)-5-hepte