Regioselective Access to 3‐Ethylideneflavanones via Rhodium(I)‐Catalyzed 1,3‐Enyne Hydroacylation/Annulation Cascades
作者:Zhi‐Xin Chang、Fu‐Rong Li、Chengcai Xia、Fei Li、Hong‐Shuang Li
DOI:10.1002/adsc.202001565
日期:2021.3.16
The highly efficient synthesis of 3‐ethylideneflavanones throughsequential rhodium(I)‐catalyzed hydroacylation of terminal aryl‐substituted 1,3‐enynes with chelating aldehydes and annulation is described. This straightforward protocol highlights an unprecedented C3‐regioselective hydroacylation of 1,3‐enynes, excellent functional group compatibility, and complete atom economy.