Nonplanar Aromatic Compounds. 6. [2]Paracyclo[2](2,7)pyrenophane. A Novel Strained Cyclophane and a First Step on the Road to a “Vögtle” Belt

A benzene ring nestled into the concave face of a bent pyrene characterizes the title compound in the crystal. The synthesis of this compound was accomplished using the valence isomerization−dehydrogenation (VID) method and marks the official launch of our journey en route to aromatic belts first proposed by Prof. Vögtle.