The present article presents a personalized Account on the synthesis of nitrogen heterocycles
by combination of regioselective Pd-catalyzed cross-coupling reactions of polyhalogenated
heterocycles, i.e., Suzuki–Miyaura and Sonogashira reactions, with acid-mediated cycloisomerization
reactions. In many cases, the products constitute new heterocyclic core structures
and show interesting optical and electronic properties.
Key words
catalysis - cross-coupling - cycloisomerization - heterocycles - palladium - regioselectivity