Cycloaddition

Cobalt-Catalyzed Intramolecular Reactions between a Vinylcyclopropane and an Alkyne: Switchable [5+2] Cycloaddition and Homo-Ene Pathways

Wu, C.; Yoshikai, N. *Angew. Chem. Int. Ed.* **2018**, *57*, 6558-6562.