SEARCH Articles Figures Tables Alkyne azide reactions Alkynes 2+2]-cycloadditions Alkynes cycloaddition Alkynes cycloaddition reactions Azidation reaction Azide-Alkyne Cycloaddition Azides cycloaddition Azides cycloadditions Azides, reactions Topochemical Topochemical azide—alkyne cycloaddition Topochemical reactions