SEARCH Articles Figures Tables 5-Membered rings mercury derivatives 5-Membered rings nitro derivatives, reactions Alkenes derivatives, five-membered ring structure Carbenes Derived from Five-membered Heterocycles Carbenes Derived from Four-membered Heterocycles Cyclopentane derivatives five-membered carbocycles Cyclopentane derivs 5-membered Cyclopropane derivs 3-membered Five-Membered Heterocyclic Rings and Their Fused Derivatives Five-membered heterocycle-derived Five-membered heterocycle-derived carbenes Five-membered heterocycles radicals derived from Five-membered ring systems derivatives Five-membered rings thiophene derivatives Fluorocarboxylic acids and derivatives containing an oxygen atom as a chain member Four-membered heterocycle-derived Four-membered heterocycle-derived carbenes Macrolide antibiotics, 16-membered erythromycin derivatives Macrolide antibiotics, 16-membered tylosin derivatives Membered Aromatic Derivatives N-Heterocyclic Carbenes Derived from Six- or Seven-membered Heterocycles Olefins derivatives, five-membered ring structure Open-chain derivatives,— FIVE MEMBERED RINGS Seven-membered heterocycle-derived Seven-membered heterocycle-derived carbenes Six-membered heterocycle-derived Six-membered ring derivatives Six-membered ring systems Pyridines and benzo derivatives The Hebrew University, Jerusalem, Israel Six-Membered Ring Systems Pyridine and Benzo Derivatives Thiophene derivatives five-membered ring structure