Low‐Valent Cobalt‐Catalyzed Deprotection of Allyloxyarenes

Herein, we report a low‐valent cobalt‐catalyzed deprotection of allyloxyarenes. The method displays a broad substrate scope and good functional group tolerance, granting its utilization on more complex substrates, including O‐allylated derivatives of natural products and drugs. Based on comprehensive experiments, a plausible mechanistic pathway for the low‐valent cobalt‐catalyzed O‐deallylation of allyloxyarenes is proposed. An efficient low‐valent cobalt‐catalyzed deprotection of allyloxyarenes has been developed. The method displays a broad substrate scope and good functional group tolerance and is applicable to complex substrates, such as O‐allylated derivatives of natural products and drugs.