Enantioselective fluorescent sensor for dibenzoyl tartrate anion based on chiral binaphthyl derivatives bearing an amino acid unit

Abstract The fluorescent photoinduced electron transfer (PET) chemosensors 1 – 3 based on ( S )-1,1′-bi-2-naphthol were designed for their recognition of dibenzoyl tartrate anions. The binding properties for hydroxy acid anions were examined by the fluorescence and 1 H NMR spectra. The results indicated that receptor 1 exhibit excellent enantioselectivity toward the enantiomers of dibenzoyl tartrate anion.