Journal ArticleDOI
Controlling factors in the synthesis of cucurbituril and its homologues.
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TLDR
A wide range of reaction conditions are examined that include the effects of acid type, acid concentration, reactant concentrations, and temperature to both probe the mechanism and optimize the yields of isolated cucurbit[n]urils, where n = 5-10.Abstract:
The acid-catalyzed synthesis of cucurbit[n]urils from formaldehyde and glycoluril is poorly understood. In this paper, we examine a wide range of reaction conditions that include the effects of acid type, acid concentration, reactant concentrations, and temperature to both probe the mechanism and optimize the yields of isolated cucurbit[n]urils, where n = 5−10. A mechanism for the formation of these cucurbit[n]urils is presented. Individual cucurbit[n]urils were unambiguously identified in reaction mixtures using ESMS and 13C NMR.read more
Citations
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Synthesis of multi-hybrid hemicucurbiturils
Xiaoting Yuan,Qingkai Zeng,Li Wang,Yu-Hua You,Xingbao Cen,Qijun Zhang,Qing-Mei Ge,Hang Cong,Mao-Huang Liu +8 more
Journal ArticleDOI
Supramolecular Cucurbit[7]uril@Ferrocene Complexation on Surface: From Nanostructure Differentiation to Guest Quantitation
Lin Qi,Ruibing Wang,Hua Yu +2 more
TL;DR: In this article , a review of the CB[7]@Fc host-guest chemistry is provided, including fundamental studies in solution as well as the challenges for its application on surfaces.
Journal ArticleDOI
Liquid-Liquid Extraction and Transport of Amino Acids through Membrane by Cucurbit[6]uril and its Derivatives
TL;DR: This article highlights the use of these macrocyclic receptors having variations in structure and shape for extraction and transport of amino acids using liquid membrane system.
Journal ArticleDOI
Spectral Calculation of Cucurbituril[n] Molecule Based on Density Functional Theory
Yun Liu,Yan Lin,Yanlin Tang +2 more
TL;DR: In this paper, the spectrum of cucurbituril[n] (CB[n]) is calculated using the density functional theory (DFT) and the time-dependent DFT (TD-DFT).
Journal ArticleDOI
A study of the inclusion complex formed between cucurbit[8]uril and isonicotinic acid
Zhi chao Yu,Yun Lu,Pei-Hui Shan,Yingfang Fan,Zhu Tao,Xin Xiao,Gang Wei,Timothy J. Prior,Carl Redshaw +8 more
TL;DR: In this article , the 2:1 inclusion complex (4-PA) 2 @Q[8]·25H 2 O is formed, with two guests simultaneously encapsulated in the hydrophobic cavity; the mean planes of the guests are 3.535 Å apart.
References
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Journal ArticleDOI
I. Ueber Condensationsproducte aus Glycoluril und Formaldehyd
Journal ArticleDOI
An efficient, enantioselective synthesis of the taxol side chain
TL;DR: Synthese de la chaine du taxol a partir du phenylacetylene avec comme etapes-cle une epoxydation asymetrique et la scission regioselective de l'epoxyde as mentioned in this paper.
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A Molecular Bowl with Metal Ion as Bottom: Reversible Inclusion of Organic Molecules in Cesium Ion Complexed Cucurbituril
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Cucurbituril as a ligand for the complexation of cations in aqueous solutions
TL;DR: The complex formation of the ligand cucurbituril with alkaline cations and other cations have been studied by means of solubility measurements in the presence of the salts in aqueous solutions at 25 °C.
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Host–guest complexes of cucurbituril with the 4-methylbenzylammonium lon, alkali-metal cations and NH4+
TL;DR: In this article, the existence of two different complexes of cucurbituril with 4-methylbenzylammonium ions was reported. But the 1 : 1 stability constants were not reported for the 2 : 1 complexes with different cations.