N‐Confused and N‐Fused meso‐Aryl Sapphyrins

A state of (con)fusion: The introduction of a confused pyrrole ring into a meso-aryl sapphyrin framework destabilizes the macrocycle and forces a fusion reaction to occur. Subsequent metalation with rhenium results in further mutation to form a domino-fused sapphyrin with a fused penta-ring system (see scheme).