抄録
The reaction of a six-membered cyclic formyl-carbonyl ylide derived from α-diazo-β-ketoester with phenylacetylene derivatives under the catalysis of dirhodium(II) tetrakis[N-tetrachlorophthaloyl-(S)-tert-leucinate], Rh2(S-TCPTTL)4, provides cycloadducts containing an 8-oxabicyclo[3.2.1]octane ring system in up to 97% ee. This represents the first example of an enantioselective 1,3-dipolar cycloaddition of a cyclic formyl-carbonyl ylide. Using this catalytic process, an asymmetric synthesis of endo-6-aryl-8-oxabicyclo[3.2.1]oct-3-en-2-one natural product 1 from Ligusticum chuanxing Hort. has been achieved.
本文言語 | 英語 |
---|---|
ページ(範囲) | 6039-6042 |
ページ数 | 4 |
ジャーナル | Journal of Organic Chemistry |
巻 | 75 |
号 | 17 |
DOI | |
出版ステータス | 出版済み - 2010/09/03 |
ASJC Scopus 主題領域
- 有機化学