SEARCH Articles Figures Tables 6-Membered rings aromatic ring Aromatization of six-membered rings Membered Aromatic Rings Other Aromatic Six-Membered Ring Heterocyclics Rings six-member Selenophens Fused to Six-membered Heterocyclic Aromatic Rings Six-Membered Aromatic Ring Construction Six-membered aromatic heterocycles can have oxygen in the ring