Palladium‐Catalyzed Acyloxylation of 2‐Substituted 1,2,3‐Triazoles via Direct sp2 CH Bond Activation

The palladium‐catalyzed acyloxylation of 2‐substituted 1,2,3‐triazoles with acids via direct sp2 CH bond activation is described. This reaction is applied to a wide variety of 2‐substituted 1,2,3‐triazoles and exhibits excellent functional group tolerance. The route is found to be efficient for the preparation of 2‐substituted 1,2,3‐triazole derivatives. magnified image