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