Preparation of (<i>Z</i>)-α,β-Disubstituted Enamides via Palladium-Catalyzed Addition of Boronic Acids to Ynamides
作者:Yuanfa Yang、Lina Wang、Fang Zhang、Gangguo Zhu
DOI:10.1021/jo501894j
日期:2014.10.3
Pd-catalyzed, highly regio- and stereoselective addition of boronic acids to ynamides has been realized. This protocol generates (Z)-α,β-disubstituted enamides in high yields with excellent regio- and stereoselectivity under the mild reaction conditions, thereby providing a good complementary method for the diverse synthesis of multifunctional enamides. A wide collection of functional groups are found
Copper-Catalyzed Regio- and Stereoselective Hydroarylation of Ynamide
作者:Avijit Maity、Akhila K. Sahoo
DOI:10.1021/acs.joc.3c01720
日期:2024.1.19
Presented herein is a copper-catalyzed trans-hydroarylation of ynamides. The reaction showcases the assembly of boronic acids across the carbon–carbon triple bond of ynamides. The reaction proceeds under mild conditions offering a complementary approach for the versatile synthesis of multifunctional (E)-α,β-disubstituted enamides. Moreover, the hydroarylation process is highly regio- and stereoselective
本文提出了铜催化的炔酰胺的反式加氢芳基化。该反应展示了硼酸在炔酰胺的碳-碳三键上的组装。该反应在温和条件下进行,为多功能 ( E )-α,β-二取代烯酰胺的多功能合成提供了补充方法。此外,加氢芳基化过程具有高度区域选择性和立体选择性。该转化显示了广泛的范围(30 个示例)并容忍各种不稳定的官能团。对照实验提供了支持机械循环和观察到的选择性的实质性证据。