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Theoretical Investigations toward the [4 + 2] Cycloaddition of Ketenes with N -Benzoyldiazenes Catalyzed by N-Heterocyclic Carbenes: Mechanism and Enantioselectivity

✍ Scribed by Zhang, Wenjing; Zhu, Yanyan; Wei, Donghui; Li, Yunxia; Tang, Mingsheng


Book ID
120644338
Publisher
American Chemical Society
Year
2012
Tongue
English
Weight
651 KB
Volume
77
Category
Article
ISSN
0022-3263

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Enantioselective [4+2] cycloaddition of
✍ Pan-Lin Shao; Xiang-Yu Chen; Li-Hui Sun; Song Ye πŸ“‚ Article πŸ“… 2010 πŸ› Elsevier Science 🌐 French βš– 360 KB

Chiral N-heterocyclic carbenes were found to be efficient catalysts for the formal [4+2] cycloaddition reaction of alkyl(aryl)ketenes and 9,10-phenanthrenequinone to give the corresponding cycloadducts in good yields with high enantioselectivities.