研究了基于z基部分的双酰胺作为阴离子受体的组成部分。在这些研究过程中,合成并详细表征了azulene-1,3-和-5,7-二羧酸衍生物。通过(1)1 H NMR滴定确定基于五元环和七元环中官能化的衍生物的阴离子亲和力。这些构件的结构分析是通过X射线衍射,分子建模和2D NMR光谱进行的。五元环衍生物易于获得,提供了以syn-syn构象预组织的结合位点,并以类似于基于吡咯的类似物的强度结合了阴离子。也有强有力的证据证明芳香族CH ...阴离子之间的相互作用。
Synthesis, structure and the binding properties of the amide-based anion receptors derived from 1H-indole-7-amine
作者:Tomasz Zieliński、Paweł Dydio、Janusz Jurczak
DOI:10.1016/j.tet.2007.11.012
日期:2008.1
to aniline in construction of amide-based anionreceptors. Replacement of aniline with indolamine introduces additional binding site—indolyl NH, which can enhance anion binding for more than five times. The molecular modelling of indole-containing receptors revealed the correlation between their conformational preferences and their affinity towards anions.
The Impact of Solvent and the Receptor Structure on Chiral Recognition Using Model Acyclic Bisamides Decorated with Glucosamine Pendant Arms
作者:Sylwia Wasiłek、Janusz Jurczak
DOI:10.1021/acs.joc.0c01693
日期:2020.9.18
We investigated the influence of various factors (including solvent mixtures) on chiral recognition of chiral carboxylates, using the titration method under H-1 NMR control. We found that strong binding carboxylates (geometrical matching) is not enough for the satisfactory differentiation of enantiomers. Moreover, solvent mixture studies indicate a significant influence of environment on the formation of diastereomeric complexes and variations among them. Our findings offer insights into the complementarity of chiral recognition processes.