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ChemInform Abstract: Co(III)-Salen Catalyzed Asymmetric Cyclopropanation.

✍ Scribed by T. FUKUDA; T. KATSUKI

Book ID
112024941
Publisher
John Wiley and Sons
Year
2010
Weight
26 KB
Volume
27
Category
Article
ISSN
0931-7597

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Co(II)–salen-catalyzed asymmetric intram
Co(II)–salen-catalyzed asymmetric intramolecular cyclopropanation
✍ Tatsuya Uchida; Biswajit Saha; Tsutomu Katsuki πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 French βš– 69 KB

Optically active Co(II)-salen complexes (5 and 7) were found to catalyze highly enantioselective intramolecular cyclopropanation of 2-alkenyl a-diazoacetates in the presence of N-methylimidazole under high substrate concentration.