4.6 Article

Metal-Free Hydrosilylation of Ketenes with Silicon Electrophiles: Access to Fully Substituted Aldehyde-Derived Silyl Enol Ethers

期刊

CHEMISTRY-A EUROPEAN JOURNAL
卷 27, 期 32, 页码 8273-8276

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202100877

关键词

boron; hydrosilylation; Lewis acids; silicon; silylium ions

资金

  1. Berlin Graduate School of Natural Sciences and Engineering
  2. Projekt DEAL

向作者/读者索取更多资源

The hydrosilylation of ketenes promoted by boron Lewis acid catalyst accelerates the reaction with hydrosilanes, providing access to a new class of aldehyde-derived silyl enol ethers. Moderate to high yields are obtained, with a preference for Z configuration.
Little-explored hydrosilylation of ketenes promoted by main-group catalysts is reported. The boron Lewis acid tris(pentafluorophenyl)borane accelerates the slow uncatalyzed reaction of ketenes and hydrosilanes, thereby providing a convenient access to the new class of beta,beta-di- and beta-monoaryl-substituted aldehyde-derived silyl enol ethers. Yields are moderate to high, and Z configuration is preferred. The corresponding silyl bis-enol ethers are also available when using dihydrosilanes. The related trityl-cation-initiated hydrosilylation involving self-regeneration of silylium ions is far less effective.

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。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据