Rhodium(III)‐Catalyzed Redox‐Neutral Coupling of N‐Phenoxyacetamides and Alkynes with Tunable Selectivity

Abstract
Give it a tweak: A novel oxidizing directing group was developed for a rhodium(III)-catalyzed CH functionalization of N-phenoxyacetamides with alkynes. A small change in the reaction conditions leads to either ortho-hydroxyphenyl-substituted enamides or cyclization to deliver benzofurans with high selectivity (see scheme; Cp*=C5Me5).
Funding Information
  • National Basic Research Program of China (2009CB825304)
  • National Natural Science Foundation of China (21202184, 21242001)
  • Chinese Academy of Sciences