Catalysis by 1,2,3-triazole- and related transition-metal complexes

• There are numerous N- and C-coordinated coordination modes of 1,2,3-triazole ligands.
• The N3 coordination mode of 1,2,3-triazoles shows multiple catalytic activities.
• Deprotonated C- or N-bonded triazole complexes show excellent catalytic properties.
• 1,2,3-Triazole complexes compare with imidazole and imidazolium ones in catalysis.
• 1,2,3-Triazole ligands combined with “biometals” largely provide “green” catalysis.

A short overview of the multiple coordination modes of 1,2,3-triazole- and related transition-metal complexes are provided, then the implication of and catalysis with transition-metal-1,2,3-triazole complexes are detailed with Mn, Fe, Ni, Cu, Ru, Rh, Ir, Pd, and Au catalysts including various ligand coordination modes and mechanistic features.

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