The aromatic metalation-cyclization sequence promoted by DMG is a valuable protocol for the regiospecific construction of carbocyclic and heterocyclic systems. [10] [11] The carbamates have attracted considerable interesting due to their DoM (Directed ortho Metalation) properties applied to the regioselective construction of heterocycles. Snieckus [12] has previously reported the use of carbamates and studied the conditions for their OC migration in aryl-carbamates to ...
