Rhodium(III)‐Catalyzed Transannulation of Cyclopropenes with <i>N</i>‐Phenoxyacetamides through CH Activation

Abstract

Abstract An efficient rhodium(III)‐catalyzed synthesis of 2 H ‐chromene from N ‐phenoxyacetamides and cyclopropenes has been developed. The reaction represents the first example of using cyclopropenes as a three‐carbon unit in rhodium(III)‐catalyzed C(sp 2 )H activations.