An oxidant-free electrochemical regioselective chlorination of 8-aminoquinoline amides at ambient temperature in batch and continuous-flow was achieved. Inert DCM was used as the chlorinating reagent. Owing to the continuous-flow setup, the reaction scale up can be achieved conveniently with higher productivity. Moreover, this method has good position-control, and water and air tolerance. Costly quaternary
The cobalt-catalyzed chelation-assisted iodination of aromatic amides using molecular I2 as an iodinating reagent is reported. 8-Amino-5-chloroquinoline functions as an efficient directing group. This mild and air stable catalytic system shows a wide functional group tolerance and improved synthetic accessibility.