Heteropolycyclic compounds with a nitrogen nucleus have attracted the attention of researchers, and some strategies for the synthesis of heterocycles based on palladium-catalyzed reactions nicely complement the classical synthetic approaches. [1] The introduction of functionalized aryl or alkenyl moieties onto heterocyclic compounds is also an important task in organic synthesis. To this aim, cross-coupling reactions (Kumada, Negishi, Hiyama, Stille, Suzuki) ...
