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Asymmetric cycloaddition of anthrone and maleimides catalyzed by C2-chiral pyrrolidines

✍ Scribed by Uemae, Kouhei; Masuda, Satoshi; Yamamoto, Yukio

Book ID
120835403
Publisher
Royal Society of Chemistry
Year
2001
Weight
153 KB
Volume
9
Category
Article
ISSN
1472-7781

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πŸ“œ SIMILAR VOLUMES

Asymmetric cycloaddition of anthrone wit
Asymmetric cycloaddition of anthrone with N-substituted maleimides with C2-chiral pyrrolidines
✍ Kyohei Tokioka; Satoshi Masuda; Tomomi Fujii; Yasuo Hata; Yukio Yamamoto πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 425 KB

Base-catalyzed asymmetric cycloaddition of anthrone with achiral and chiral Nsubstituted maleimides was carried out in the presence of C2-chiral pyrrolidines in almost quantitative yields. Chiral, non-racemic [4+2] adducts up to 61% ee were produced with achiral N-methyl and N-benzylmaleimide using