synthetic routes to diazidobuildingblocks with different connectable groups were established on the basis of the sequential iridium-catalyzed C–H borylation and copper-catalyzed azidation of 1,3-disubstituted benzenes, followed by diverse azido-friendly functional-group transformations. These buildingblocks facilitate the rapid development of effective diazidophotoaffinitylabelingprobes that are useful
Iridium-catalyzed azide–thioalkyne cycloaddition was found to be effective for the azido-type-selective reaction of various multiazido compounds, enabling facile synthesis of multitriazole compounds in short steps.