SEARCH Articles Figures Tables Addition alkynes Addition reaction halogens Addition reactions alkynes Addition reactions halogenation Addition reactions to alkynes Addition to alkynes Alkynes halogen addition Halogen addition Halogen addition to alkynes Halogenated alkynes Halogenation addition to alkynes Halogenation alkynes Halogenation reactions Reaction stereospecificities Reactions halogens Stereospecific addition Stereospecific reactions Stereospecificity halogenation To alkynes