Generation of I-, ArS- and ArSe- substituted pyrrolo[3,4–c]pyridine derivatives using copper iodide as an iodinating agent

Abstract

A new, efficient and operationally simple copper mediated C−I, CS and C−Se bond formation protocol has been developed. This process proceeds smoothly under mild aerobic condition to give CH iodinated, sulfenylated and selenenylated pyrrolo[3,4–c]pyridines derivative. The versatility of this process has been successfully established by simply varying different electrophile. This copper iodide-mediated CH functionalization approach provides a direct access of structurally diverse 7-iodinated/sulfenylated/selenenylated pyrrolo[3,4–c]pyridine derivatives in good to excellent yield within short reaction time.