SEARCH Articles Figures Tables Acetylenic esters, synthesis of heterocycles through nucleophilic additions Addition synthesis Additive synthesis Heterocycles synthesis of, through nucleophilic additions Heterocyclic synthesis through nucleophilic additions Heterocyclic synthesis through nucleophilic additions to acetylenic Nucleophilic additions to acetylenic esters synthesis of heterocycles through Synthesis of heterocycles through nucleophilic additions to acetylenic