A novel type of chiral molecular clefts was designed and synthesized by using chenodeoxycholic acid as spacer and aromatic compounds as arm.Their structures were confirmed by 1H NMR,IR,MS spectra and elemental analysi...A novel type of chiral molecular clefts was designed and synthesized by using chenodeoxycholic acid as spacer and aromatic compounds as arm.Their structures were confirmed by 1H NMR,IR,MS spectra and elemental analysis.Enantioselective recognition properties of these molecular clefts for amino acid methyl esters were investigated by UV-vis spectra titration. The results indicated that these molecular clefts not only recognize all amino acid methyl esters examined but also possess higher selectivity for L-amino acid methyl esters than for D-amino acid methyl esters.展开更多
文摘A novel type of chiral molecular clefts was designed and synthesized by using chenodeoxycholic acid as spacer and aromatic compounds as arm.Their structures were confirmed by 1H NMR,IR,MS spectra and elemental analysis.Enantioselective recognition properties of these molecular clefts for amino acid methyl esters were investigated by UV-vis spectra titration. The results indicated that these molecular clefts not only recognize all amino acid methyl esters examined but also possess higher selectivity for L-amino acid methyl esters than for D-amino acid methyl esters.
