SEARCH Articles Figures Tables Addition of cyclopropene to heterocycles with heteroatoms in the 1, 2, and 5 positions Annulated Five-Membered Heterocycles with One Heteroatom Annulated Five-Membered Heterocycles with Two Heteroatoms Carbon—heteroatom bond formation heterocycles Five-Membered Aromatic Heterocycles with One Heteroatom Five-Membered Heterocycles Containing One Heteroatom Five-Membered Heterocycles Containing Two Heteroatoms Five-membered Heterocycles containing One Heteroatom Pyrrole, Furan and Thiophene Five-membered heterocycles with four heteroatom Five-membered heterocycles with more than one heteroatom Five-membered heterocycles with more than two heteroatoms Five-membered heterocycles with one heteroatom Five-membered heterocycles with three heteroatom Five-membered heterocycles with two heteroatom Five-membered heterocycles with two heteroatoms Fused heterocycles sharing at least one heteroatom HETEROATOMS AND HETEROCYCLIC COMPOUNDS Heteroatom heterocycles Seven-membered Heteroatoms Heterocycles Heteroatoms Heterocycles Heterocycles Containing More Than Two Heteroatoms Heterocycles Containing Unusual Heteroatoms Heterocycles Heteroatoms in Cyclic Organic Compounds Heterocycles aromatic with 2 heteroatoms Heterocycles containing more than One Heteroatom Heterocycles from heteroatom Diels-Alder reactions Heterocycles with Different Heteroatoms Heterocycles with One Heteroatom Heterocycles with Three Heteroatoms Heterocycles with Two Heteroatoms Heterocycles with Two or Three Heteroatoms Heterocycles with four heteroatoms Heterocycles with four heteroatoms reviews Heterocycles with heteroatoms Heterocyclic Systems with 1,2-Heteroatoms Heterocyclic Systems with Heteroatoms of the Same Name Heterocyclic and Heteroatomic Dithiolates Heterocyclic compounds Cyclic organic heteroatoms, atoms other than Heterocyclic compounds four heteroatomic rings Heterocyclic compounds heteroatomic Heterocyclic compounds three heteroatomic rings Heterocyclic synthesis heteroatoms Of heterocycles: five-membered rings with one heteroatom Of heterocycles: five-membered rings with two or more heteroatoms Pd-Catalyzed Synthesis of Other Heteroatom-Containing Heterocycles Peri-Heterocycles with Six-Membered Heteroring and Three Heteroatoms Polyimides. Heteroatom and Heterocyclic Polymers Polymers with Conjugated Bonds, Heteroatoms and Heterocycles in the Backbone Chain Polymers, heteroatom/heterocyclic Seven-membered heterocycles with three heteroatom Six-membered heterocycles with more than one heteroatom Six-membered heterocycles with one heteroatom Six-membered heterocycles with three heteroatom Six-membered heterocycles with two heteroatom Tellurium-containing heterocycles with two heteroatoms Thioureas in synthesis of heterocycles heteroatoms