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tris-(1-benzyl-1H-1,2,3-triazol-4-yl)methanol (TTM)is a tertiary alcohol with the 1,2,3-triazole groups on it. It is mostly used as ligand in copper(I)-catalyzed azide-alkyne cycloaddition reaction as its complex with Cu(I)Cl. Excellent yields, regioselectivity are obtained in both aqueous and organic solvents with very short reaction times. It was developed by following the seminal work (TBTA). Such ligand systems believed to stabilize and solubilize copper(I) species under reaction conditions to afford azide-alkyne cycloaddition to be catalyzed by such Cu(I) species in the reaction medium.

Its polymer supported version also behaves in same catalytic activity and with additional properties such as recycling and reuse like in the concept of polymer bound metal catalysts.

Vastly, it has been used for cases where competing or poisoning functional groups are present in the substrates such as free amines, thiols and so on. It is commercially available through CSQL.