SEARCH Articles Figures Tables A-Hydrogen acidity Acid-Catalyzed Hydrogen Exchange as a Quantitative Measure of Reactivity Acidity of a-Hydrogens the Enolate Anion Acidity of a-hydrogen atoms enolate formation Acidity of a-hydrogen atoms enolate ion formation Asymmetric Catalytic Hydrogenation of a-Acetamidocinnamic Acid Esters Asymmetric hydrogenation of a-acetamido cinnamic acid Asymmetric hydrogenation of vinylphosphonic acids carrying a phenyl substituent at Enantioselective Hydrogenation of a,P-Unsaturated Acids or Esters Hydrogenation of Dehydro-a-Amino Acids and Enamides Hydrogenation of a, p-unsaturated acids Hydrogenation of acids Metal-free reduction of imines enantioselective Br0nsted acid-catalyzed transfer hydrogenation using chiral BINOL-phosphates as catalysts Reduction, by hydrogen and Raney of a hydroxylamino acid to an amino The Acidity of an a-Hydrogen