α‐Functionalization of ketones in an umpolung fashion can be achieved by nucleophilic addition to the oxy‐allylcation intermediate. However, applicable carbon nucleophiles are limited to ones with high nucleophilicity. Additionally, introduction of a leaving group to the α‐position of ketone substrates is required beforehand. Herein, we report the CuCl2‐mediated oxidative intramolecular α‐arylation