SEARCH Articles Figures Tables Aromatic Five-Membered Ring Heterocyclics Azoles Five-membered ring heterocycles with Elimination giving three-membered heterocyclic rings FIVE-MEMBERED HETEROCYCLES FUSED TO A BENZENE RING Five-Membered Heterocycles Fused to One Benzene Ring Five-Membered Heterocyclic Rings and Their Fused Derivatives Five-Membered Ring Benzofused Heterocycles Five-Membered Ring Heterocycles with Two Hetero Atoms Five-membered heterocycles, ring Five-membered heterocycles, ring transformations Five-membered heterocyclic rings Five-membered ring fluoro-heterocycles Five-membered ring heterocycles formation Five-membered ring heterocycles imidazole Five-membered ring heterocycles lactams Five-membered ring heterocycles organic reactions Five-membered ring heterocycles pyrazole Five-membered ring heterocycles pyrrole Five-membered ring heterocycles tetrazole Five-membered ring heterocycles triazole Five-membered ring heterocycles, relative Five-membered ring heterocycles, relative aromaticity Five-membered ring heterocyclics with two or more hetero-atoms Five-membered rings, heterocycle synthesis Fluorinated Three-Membered Ring Heterocycles Fluoro heterocycles with five-membered rings Four-membered ring heterocycles Four-membered ring heterocycles azetidine-2-ones Four-membered ring heterocycles azetidines Four-membered ring systems silicon and phosphorus heterocycles Four-membered rings, heterocycle synthesis Fused to heterocycles with 6-and 7-membered rings Fused-Ring Five-Membered Heterocycles Indoles and Purines Fused-ring five-membered heterocycles Heterocycles six-membered ring Heterocyclic Four-Membered Rings, Stereochemistry of (Moriarty) Heterocyclic compounds five-membered rings Heterocyclic compounds four-membered ring opening Heterocyclic compounds four-membered ring, formation Heterocyclic compounds four-membered rings Heterocyclic compounds seven-membered ring opening Heterocyclic compounds seven-membered rings Heterocyclic compounds three-membered ring opening Heterocyclic compounds three-membered rings Heterocyclic rings unsaturated five-membered Heterocyclic synthesis five-membered rings Heterocyclic synthesis seven-membered rings Heterocyclic synthesis six-membered rings Heterocyclic synthesis three-membered thiirane rings Membered Ring Heterocyclic Polymers Nitrogen heterocycles six-membered rings Nitrogen-containing heterocycle synthesis five-membered ring heterocycles Nitrogen-containing heterocycle synthesis seven-membered ring heterocycles Of heterocycles five-membered rings Of heterocycles: five-membered rings with Of heterocycles: five-membered rings with one heteroatom Of heterocycles: five-membered rings with two or more heteroatoms Other Aromatic Six-Membered Ring Heterocyclics Other Seven-Membered Heterocycles Fused to a Benzene Ring Phosphorus heterocycles five-membered rings Phosphorus heterocycles four-membered rings Phosphorus heterocycles three-membered rings Quinones with a Condensed Four-Membered Heterocyclic Ring Reactions with Five-Membered Heterocyclic Rings Ring Expansion into Five-Membered Heterocycles Ring Expansion into Four-Membered Heterocycles Ring Expansion into Six-Membered Heterocycles Ring Transformation into other Three-Membered Heterocycles Ring compounds heterocyclic five-membered rings Ring compounds heterocyclic five-membered rings from Ring transformations of five-membered heterocycles SEVEN-MEMBERED HETEROCYCLIC RINGS FUSED TO BENZENE Selenophens Fused to Six-membered Heterocyclic Aromatic Rings Seven-membered ring heterocycles Seven-membered ring heterocycles reviews Seven-membered ring heterocycles with Seven-membered rings, heterocyclic Six-Membered Heterocycles Fused to One Benzene Ring Six-membered aromatic heterocycles can have oxygen in the ring Six-membered heterocyclic rings Six-membered ring heterocycles containing one oxygen atom Six-membered ring heterocycles with one Synthesis of Five-Membered Ring Heterocycles Tautomerism of Heterocycles: Five-Membered Rings with Tautomerism of heterocycles: five-membered rings with one Tautomerism of heterocycles: five-membered rings with two Thioureas in synthesis of heterocycles Three-membered rings with two Three membered ring heterocycles Three-Membered Heterocyclic Rings, Illogical Electrophiles