Silver-Catalyzed Formal Insertion of Arynes into R_f-I Bonds**

摘要

An unprecedented silver-catalyzed formal insertion of arynes into R_f-I (R_f =CF_3, C_2F_5) bonds has been developed. This protocol provides easy access to various ortho-perfluoroalkyl iodoarenes under mild conditions. In this insertion reaction, an ionic atom-transfer reaction of R_fI occurs, and a silver-mediated metathesis process is involved in the efficient transfer of the electropositive iodine atom.