Copper-free Click Reaction Reagents (154)

Copper-free click chemistry refers to a reaction technique that enables fast intermolecular bonding under mild conditions without relying on toxic copper catalysts. The primary reagents for copper-free click reactions include DBCO (dibenzocyclooctyne) and BCN (benzocyclooctyne) compounds. These reagents can react with azides in the absence of copper, forming stable triazole bonds. This approach is widely applied in fields such as biomedicine, materials science, and drug development.