Aral, HayriyeAral, TarikColak, MehmetZiyadanogullari, BerrinZiyadanogullari, Recep2024-04-242024-04-2420131300-0527https://doi.org/10.3906/kim-1207-58https://hdl.handle.net/11468/19354Two novel C-2-symmetric chiral diamines containing alpha-phenylethyl and alpha-(1-naphthyl)ethyl chiral subunits were prepared with quantitative yields. Enantiomeric recognition properties of these simple structured diamine ligands towards D- and L-amino acid esters and D- and L-mandelic acid were examined by the H-1 NMR titration method. These ligands exhibited strong complexation (with K-f up to 2481 M-1) and good enantioselectivity (up to K-L/K-D = 4.08) towards the mandelic acid enantiomers. The results show that simple structured and easily accessible acyclic C-2-symmetrical compounds can also be used for enantiomeric recognition of racemic amino acids and mandelic acid in addition to complex molecules such as crown ethers and other cyclic molecules.eninfo:eu-repo/semantics/openAccessEnantiomeric RecognitionC-2 SymmetricChiral DiaminesAmino AcidsMandelic AcidNmr TitrationC2-Symmetric chiral diamine ligands for enantiomeric recognition of amino acid esters and mandelic acid by proton NMR titration methodC2-Symmetric chiral diamine ligands for enantiomeric recognition of amino acid esters and mandelic acid by proton NMR titration methodArticle373374382WOS:0003209870000062-s2.0-8487977742910.3906/kim-1207-58Q3Q3