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Phosphine-Catalyzed Cycloaddition of 2,3-Butadienoates or 2-Butynoates with Electron-Deficient Olefins. A Novel [3 + 2] Annulation Approach to Cyclopentenes

โœ Scribed by Zhang, Chunming; Lu, Xiyan


Book ID
115478111
Publisher
American Chemical Society
Year
1995
Tongue
English
Weight
397 KB
Volume
60
Category
Article
ISSN
0022-3263

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Phosphine-catalyzed [3+2] cycloaddition
โœ Zhenrong Xu; Xiyan Lu ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 200 KB

In the presence of a catalytic amount of triphenylphosphine, methyl 2,3-butadienoate smoothly reacted with aromatic or heteroaromatic N-tosylimines at room temperature to afford the [3+2] cycloaddition product in excellent yield.