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Co(II)–salen-catalyzed highly cis- and enantioselective cyclopropanation

✍ Scribed by Tatsuo Niimi; Tatsuya Uchida; Ryo Irie; Tsutomu Katsuki

Book ID
104210237
Publisher
Elsevier Science
Year
2000
Tongue
French
Weight
249 KB
Volume
41
Category
Article
ISSN
0040-4039

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📜 SIMILAR VOLUMES

Co(II)–salen-catalyzed asymmetric intram
Co(II)–salen-catalyzed asymmetric intramolecular cyclopropanation
✍ Tatsuya Uchida; Biswajit Saha; Tsutomu Katsuki 📂 Article 📅 2001 🏛 Elsevier Science 🌐 French ⚖ 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.