SEARCH Articles Figures Tables Acetylenecarboxylate Acetylenecarboxylates Acetylenecarboxylic acids Acetylenecarboxylic acids, reactions Acidic compounds, reaction Heterocycles reaction Heterocyclic acids Heterocyclic compounds reaction of acetylenecarboxylic acids Heterocyclic compounds reactions of acetylenecarboxylic Heterocyclization reactions N-Heterocyclic compounds reaction of acetylenecarboxylic acids and N-Heterocyclic compounds reaction of acetylenecarboxylic acids and esters with N-compounds N-heterocycles reactions Of N-heterocycles Reactions of heterocycles