Visible‐Light‐Induced Controlled C–H Cyanation or Thiocyanation of Indolizines

An efficient and controlled approach for C–H cyanation/thiocyanation of indolizines is reported under visible‐light‐induced conditions. NH 4 SCN is used as the cyano or thiocyano source and the presence or absence of H 2 O 2 are found to be the key factor in the selective construction of C‐3 cyano or thiocyano indolizines. A set of control experiments, such as radical trapping experiments and fluorescence quenching studies are conducted to assess mechanistic insights of the reaction.