期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 18, 期 27, 页码 8448-8453出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201200647
关键词
alkenes; asymmetric synthesis; lactones; organocatalysis; spiro compounds
资金
- JSPS
- Grants-in-Aid for Scientific Research [24659005, 23790011, 23390005, 24105516] Funding Source: KAKEN
A method for conducting enantioselective bromolactonization reactions of trisubstituted alkenoic acids, using the C3-symmetric trisimidazoline 1 and 1,3-dibromo-5,5-dimethyl hydantoin as a bromine source, has been developed. The process generates chiral d-lactones that contain a quaternary carbon. The results of studies probing geometrically different olefins show that (Z)-olefins rather than (E)-olefins are favorable substrates for the process. The method is not only applicable to acyclic olefin reactants but can also be employed to transform cyclic trisubstituted olefins into chiral spirocyclic lactones. Finally, the synthetic utility of the newly developed process is demonstrated by its application to a concise synthesis of tanikolide, an antifungal marine natural product.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据