SEARCH Articles Figures Tables 2-Hydroxy five-membered heterocycles, tautomerism Annulated Five-Membered Heterocycles with One Heteroatom Annulated Five-Membered Heterocycles with Two Heteroatoms Aromatic Five-Membered Ring Heterocyclics Aromatic heterocycles five-membered Aromaticity, of five-membered heterocycles Aryl-substituted five-membered heterocycles Azoles Five-membered ring heterocycles with Benzene-fused five-membered heterocycles Benzo-fused five-membered heterocycles Benzo-fused five-membered heterocycles aromaticity Carbenes Derived from Five-membered Heterocycles Carbocycles/heterocycles, five-membere Diels-Alder reaction with five-membered heterocycle Electrocyclizations five-member heterocyclic synthesis Enantioselectivity five-membered heterocyclic FIVE-MEMBERED HETEROCYCLES FUSED TO A BENZENE RING Five- or six-membered heterocyclic Five-Membered Aromatic Heterocycles with One Heteroatom Five-Membered Heterocycled Five-Membered Heterocycled Five-Membered Heterocycles Containing One Heteroatom Five-Membered Heterocycles Containing Two Heteroatoms Five-Membered Heterocycles Furan, Pyrrole, and Thiophene Five-Membered Heterocycles Fused to Benzene Five-Membered Heterocycles Fused to One Benzene Ring Five-Membered Heterocycles with Four Hetero Atoms Five-Membered Heterocycles with One Hetero Atom Five-Membered Heterocycles with Three Hetero Atoms Five-Membered Heterocyclic Rings and Their Fused Derivatives Five-Membered Meso-ionic Heterocycles of Type Five-Membered Ring Benzofused Heterocycles Five-Membered Ring Heterocycles with Two Hetero Atoms Five-Membered Selenium-Nitrogen Heterocycles Five-Membered Unsaturated Heterocycles Five-membered Heterocycles containing One Heteroatom Pyrrole, Furan and Thiophene Five-membered heterocycle-derived Five-membered heterocycle-derived carbenes Five-membered heterocycles Five-membered heterocycles Five-membered heterocycles 1,3-dipolar cycloaddition reactions Five-membered heterocycles are good nucleophiles Five-membered heterocycles aromaticity Five-membered heterocycles compounds Five-membered heterocycles defined Five-membered heterocycles electrophilic substitution Five-membered heterocycles from thioureas Five-membered heterocycles fused with Five-membered heterocycles halogenation Five-membered heterocycles heterocyclic construction Five-membered heterocycles hydrogen exchange Five-membered heterocycles imidazole Five-membered heterocycles insertion reactions Five-membered heterocycles metallation regioselectivity Five-membered heterocycles nitration Five-membered heterocycles photochemistry Five-membered heterocycles pyrrole Five-membered heterocycles radicals derived from Five-membered heterocycles reactions with carbenes Five-membered heterocycles relative reactivities Five-membered heterocycles side-chain reactivity Five-membered heterocycles with N and S Five-membered heterocycles with O and Five-membered heterocycles with O and N atoms Five-membered heterocycles with four heteroatom Five-membered heterocycles with more than one Five-membered heterocycles with more than one heteroatom Five-membered heterocycles with more than two heteroatoms Five-membered heterocycles with one Five-membered heterocycles with one heteroatom Five-membered heterocycles with three Five-membered heterocycles with three heteroatom Five-membered heterocycles with two Five-membered heterocycles with two heteroatom Five-membered heterocycles with two heteroatoms Five-membered heterocycles, direct arylations, palladium Five-membered heterocycles, ring Five-membered heterocycles, ring transformations Five-membered heterocyclic amines Five-membered heterocyclic iodine compounds Five-membered heterocyclic rings Five-membered heterocyclics substitution Five-membered nitrogen heterocycles 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 Fluorine and Perfluoroalkyl Groups into Five-Membered Heterocycles via Cyclocondensation Reactions Fluorine into Five-Membered Heterocycles Fluorine-containing Substituents into Five-Membered Heterocycles via Dipolarophiles Fluorine-containing Substituents into Five-Membered Heterocycles via Fluoro-substituted 1,3-Dipoles Fluoro heterocycles with five-membered Fluoro heterocycles with five-membered rings Formation of Five-membered Nitrogen Heterocycles Formation of five membered heterocycles Forming five-membered heterocycles From benzo five-membered heterocycles From five-membered heterocycles by extrusion Fused Five-Membered Heterocycles Fused-Ring Five-Membered Heterocycles Indoles and Purines Fused-ring five-membered heterocycles Halogenation of Five-Membered Heterocycles Heterocycles five-membered, synthesis Heterocycles, five- and six-membered Heterocyclic compounds Cyclic organic five-membered Heterocyclic compounds five-membered Heterocyclic compounds five-membered rings Heterocyclic compounds unsaturated five-membered Heterocyclic compounds, five-membered geometry Heterocyclic rings unsaturated five-membered Heterocyclic synthesis five-membered rings Homologation of Five-Membered Heterocycles In five-member heterocycles Insertion reactions five-membered heterocycle synthesis Iodine heterocycles five-membered Lithiation five-membered heterocycles Lithiation five-membered heterocycles, positional Microwave irradiation five-membered heterocycles Monocyclic five-membered heterocycles Nitrogen-containing heterocycle synthesis five-membered ring heterocycles Of five-membered 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 Five-Membered Heterocycles Other Five-Membered Heterocycles Azoles Other Five-Membered Oxygen-Containing Heterocycles PART 2 FIVE-MEMBERED HETEROCYCLES Phosphorus heterocycles five-membered rings Preparation of Five-Membered Heterocycles Purines Fused with Five-Membered Heterocycles Radicals Containing a Five-Membered Heterocycle Reactions of Five-Membered Heterocycles Reactions with Five-Membered Heterocyclic Rings Reactivity values five-membered heterocycles Ring Expansion into Five-Membered Heterocycles Ring compounds heterocyclic five-membered rings Ring compounds heterocyclic five-membered rings from Ring transformations of five-membered heterocycles Saturated five-membered nitrogen heterocycles Saturated five-membered nitrogen heterocycles reactions Saturated five-membered nitrogen heterocycles synthesis Sensitivity of the Five-Membered Heterocycles to Substituent Effects Side-chain metallation five-membered heterocycles Sulfur heterocycles five-membered Synthesis of Five-Membered Heterocycles Synthesis of Five-Membered Nitro-Heterocycles Synthesis of Five-Membered Ring Heterocycles Synthesis of five-membered nitrogen heterocycle Tautomerism of Heterocycles: Five-Membered Rings with Tautomerism of heterocycles: five-membered rings with one Tautomerism of heterocycles: five-membered rings with two The Two Types of Five-Membered Meso-ionic Heterocycles