Collection: Salen Ligands

Salen Ligands — this collection gathers salen ligands, namely bis(salicylidene)diamine compounds that form tetradentate chelate complexes through nitrogen and oxygen atoms with various transition metals. This salicylidene-diamine framework, in both chiral and achiral forms, is widely used as a ligand scaffold in metal catalyst complexes.

Chiral salen ligands, especially those based on the 1,2-diaminocyclohexane framework, are widely used by catalysis chemists to form metal complexes in asymmetric epoxidation and hydrolytic kinetic resolution. In addition, achiral salen ligands such as ethylenediamine derivatives are used in the synthesis of coordination complexes for inorganic chemistry research and metal-ligand structure studies. The flexibility of substituent groups on the salicylidene ring allows tuning of the electronic and steric properties of the catalyst.

Example products in this collection: TCI B4647 135616-36-3 (S,S)-(+)-N,N'-Bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamine, TCI B6501 103595-81-9 6,6'-[[Ethane-1,2-diylbis(azaneylylidene)]bis(methaneylylidene)]bis(2,4-di-tert-butylphenol), TCI B4418 135616-40-9 (R,R)-(-)-N,N'-Bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamine, TCI D1307 94-91-7 N,N'-Bis(salicylidene)-1,2-propanediamine, TCI B3015 124061-43-4 N,N'-Bis(5-hydroxysalicylidene)ethylenediamine, TCI D1422 120-70-7 N,N'-Bis(salicylidene)-1,3-propanediamine, TCI B2653 539834-16-7 (1S,2S,4S,5S)-2,5-Bis(3,5-di-tert-butyl-2-hydroxybenzylideneamino)bicyclo[2.2.1]heptane, TCI D2572 3946-91-6 N,N'-Bis(salicylidene)-1,2-phenylenediamine.

Selection should consider the chiral configuration (R,R or S,S) according to the stereoselectivity requirements of the reaction, as well as the type of substituent on the salicylidene ring, such as tert-butyl groups that affect the steric and electronic properties of the ligand. All products are original products of Tokyo Chemical Industry (TCI) Japan, with purity, packaging, and storage conditions listed on each item's page.

Other parallel categories under Nitrogen-Donor Ligands [Catalysis], often used together in one laboratory workflow:

• Amine Ligands
• Pyridine Ligands
• Oxazole Ligands, Oxazoline Ligands, Thiazole Ligands
• Pyrazole Ligands, Imidazole Ligands, Triazole Ligands
• Imine Ligands

Back to Nitrogen-Donor Ligands [Catalysis]. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team — official TCI Japan distributor in Indonesia — to check availability and lead time directly from Japan.