The Synthesis of Chiral Macrocyclic Ligands Containing A 2,5-Bisphenyl-1,3,4-Oxadiazole Unit
作者:Hongwu Zhao、Wenting Hua
DOI:10.1080/00397910008087442
日期:2000.8
Abstract Six new chiral 2,5-bisphenyl-1,3,4-oxadiazole-containing macrocylic ligands, which can be used to recognize the enantiomers of D- and L-amino acid methyl ester hydrochloride, have been synthesized and characterized.
Synthesis and Characterization of Pyridine-Based Polyamido-Polyester Optically Active Macrocycles and Enantiomeric Recognition for <scp>d</scp>- and <scp>l</scp>-Amino Acid Methyl Ester Hydrochloride
作者:Hongwu Zhao、Wenting Hua
DOI:10.1021/jo9913715
日期:2000.5.1
presence of DCC and DMAP. The enantiomeric recognition of chiral macrocycles 3a-e for D- and L-amino acid methyl ester hydrochlorides has been characterized by fluorescence spectra, which indicate that some of them exhibited significant chiral recognition for the enantiomers of D- and L-amino acid methyl ester hydrochlorides. The stoichiometry and binding constants of 3a-L-Am(2) and 3c-L-Am(2) complexes
Abstract An array of novel chiral aromatic heterocyclic macrocycles, which may show potential enantiomeric recognition to variable D- and L-amino acids, were synthesized in acceptable yield. The desired macrocycles 3a–c and 4a–c were obtained via the condensation reaction of chiral diamine intermediates 2a–c with 2,5-bis(o-chloroformylphenyl)-1,3,4-triazole 5 in a presence of Et3N in a highly diluted