Abstract :
The application of binaphthol derivatives 6´-tert-butyl-3-[2-(2-hydroxyethoxy)ethoxymethyl]-[1,1´-binaphthalenyl]-2,2´-diol (1) and 2-(2,2´-dimethoxy-1,1´binaphthalenyl-3-ylmethoxy)phenol (2) as novel multitopic receptors for amino acid esters within plasticized PVC membranes is described. Potentiometric experiments have shown that the recognition behavior of amino acid esters was significantly controlled by intermolecular interactions between the receptor and the NH3+ group and the residual "R" group on the alpha-carbon of the target substrate (amino acid ester).
