SEARCH Articles Figures Tables Calf, G. E., Garnett, J. L., isotopic Hydrogen Labeling of Heterocyclic Compounds Electrolytic Fluorination of Heterocyclic Compounds in Trialkylamine Complexes with Anhydrous Hydrogen Fluoride Heterocycles, hydrogenation Hydrogenation of Heterocyclic Aromatic Compounds Hydrogenation of N-heterocyclics Hydrogenation of Nitrogen Heterocycles Hydrogenation of Sulfur Heterocycles Hydrogenation of polynuclear N-heterocycles Isothiazoles Isotopic hydrogen labeling of heterocyclic Isotopic hydrogen labeling of heterocyclic Isotopic hydrogen labeling of heterocyclic compounds, one-step methods Replacement of hydrogen by halogen in heterocycles