Rhodium(III)‐Catalyzed, CH Activated Annulation to Form Isocoumarins and
<i>α</i>
‐Pyrones using the ON Bond as an Internal Oxidant
作者:Xing Guang Li、Kai Liu、Gang Zou、Pei Nian Liu
DOI:10.1002/adsc.201400200
日期:2014.5.5
A mild, efficient and regioselective CHactivation‐based intermolecular redox‐neutral annulation of O‐benzoylhydroxylamines and internal alkynes has been achieved. The protocol employs an ONbond as the internaloxidant and leads to isocoumarins and α‐pyrones.