Transition-metal catalysis has recently emerged as a powerful tool to functionalize otherwise unreactive CACHTUNGTRENNUNG (sp2) ÀH and CACHTUNGTRENNUNG (sp3) ÀH bonds.[1–2] In this context, recent research from our group [3] and others [4] has focused on the intramolecular arylation of unactivated CACHTUNGTRENNUNG (sp3) ÀH bonds to aryl halides under palladium (0) catalysis, giving rise to original polycylic molecules.[5] To date ...