Meeting the Challenge of Intermolecular Gold(I)-Catalyzed Cycloadditions of Alkynes and Allenes

The development of gold(I)‐catalyzed intermolecular carbo‐ and hetero‐cycloadditions of alkynes and allenes has been more challenging than their intramolecular counterparts. Here we review, with a mechanistic perspective, the most fundamental intermolecular cycloadditions of alkynes and allenes with alkenes. Golden addition: The development of gold(I)‐catalyzed intermolecular carbo‐ and hetero‐cycloadditions of alkynes and allenes has been more challenging than their intramolecular counterparts. Here, with a mechanistic perspective, the most fundamental intermolecular cycloadditions of alkynes and allenes with alkenes are reviewed.