A³ Coupling Reaction in the Synthesis of Heterocyclic Compounds

In recent years, the transition‐metal catalyzed three‐component coupling of an aldehyde, an alkyne and an amine, commonly called A 3 coupling has become a powerful tool in organic synthesis. The aim of this review is to give a general overview of A 3 coupling utility in the synthesis of heterocycles, highlighting the variety of compounds that can be directly accessed from single reactions. The diverse A 3 coupling based methodologies that have...