Dibora[10]annulenes: Construction, Properties, and Their Ring-Opening Reactions.

The selective construction of various dibora[10]annulenes through mild boron-tin exchange reactions is reported. Dibora[10]annulenes exhibit optical and electrochemical properties of value for future sensing applications. Controlled addition of the Lewis base pyridine to dibora[10]annulenes instigates a selective ring-opening reaction. This work explores a new area of boron chemistry that represents the first step in the potential formation of dibora[10]annulene-derived polymers.