Abstract
The 1,1'-binaphthol-based dimers with p-phenylenebis(2-ethynyl) spacer, (+)-6 and (+)-2, were synthesized as chiral host compounds. (1)H NMR, UV-vis, and fluorescent titration were used to evaluate the enantiomeric recognition abilities of the chiral host dimers toward the guest amine 7 and alpha-amino acid ester 8. The chiral BINOL-based dimers were found to have good enantiomeric recognition ability. The computer simulation of the host-guest complex molecules was carried out to describe the conformational changes of both naphthyl ring in the molecule of chiral host dimer after complexation with the guest molecule.
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