Cu<sup>II</sup>-Catalyzed Coupling with Two Ynone Units by Selective Triple and Sigma C–C and C–H Bond Cleavages
作者:Jiang Nan、Jiawen Zhang、Yan Hu、Chao Wang、Tingting Wang、Weitao Wang、Yangmin Ma、Michal Szostak
DOI:10.1021/acs.orglett.1c00371
日期:2021.3.5
We report a new copper-catalyzed [2 + 2 + 1] annulation process through the selective cleavage of sigma and triple C–C and C–H bonds using two ynone units. This new methodology involves breaking multiple chemical bonds in a single operation, including C≡C, C–C, C–H, and N–O. These high-value adducts lead to a diverse collection of synthetically challenging trisubstituted indolizines by the simultaneous
我们报告了一个铜催化的[2 + 2 + 1]新的环化过程,该过程通过使用两个ynone单元选择性裂解sigma和三重C–C和C–H键来实现。这种新方法涉及在一次操作中打破多个化学键,包括C≡C,CC,CH和NO。这些高价值的加合物通过同时参与不同的键断裂事件而导致合成挑战性三取代吲哚嗪的多样性,并在绿色水溶液中显示出出色的荧光。