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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Cucurbituril-Oriented Nanoplatforms in Biomedical Applications
TL;DR: The acquisition, properties, and structural modifications of CB are comprehensively described, and the value of this macrocycle in applications within the medical field is discussed, aiming to illustrate the current status of developments of this molecule.
Journal ArticleDOI
Host–guest modes and supramolecular frameworks of complexes of tetramethyl cucurbit[6]uril with 4-chloroaniline and 4,4′-diaminostilbene
TL;DR: In this article, the host-guest modes between tetramethyl cucurbit[6]uril (TMeQ[6]) as a host and 4-chloroaniline and 4,4′-diaminostilbene (G1 and G2) as guests were investigated by single-crystal X-ray diffraction, NMR, ITC, UV-Vis spectrum, and MALDI-TOF mass spectrometry analyses.
Journal ArticleDOI
Study on the supramolecular interaction of astemizole with cucurbit[7]uril and its analytical application
TL;DR: In this paper, the association constants of the complexes formed between the host and the guest were determined based on significant quenching of the supramolecular complex fluorescence intensity, a fluorescent probe method of high sensitivity and selectivity was developed to determine AST in its pharmaceutical dosage forms and in urine samples with good precision and accuracy.
Journal ArticleDOI
New Composites LnBDC@AC and CB[6]@AC: From Design toward Selective Adsorption of Methylene Blue or Methyl Orange.
Guilherme C. Santos,Amanda L. Barros,Carlos Alberto Fernandes de Oliveira,Leonis Lourenço da Luz,Fausthon Fred da Silva,Grégoire Jean-François Demets,Severino Alves Júnior +6 more
TL;DR: New porous composites LnBDC@AC and CB[6]@AC were obtained using hydrothermal route and showed good absorptive capacity of metil orange (MO) and methylene blue (MB) with selectivity as a function of pH.
Journal ArticleDOI
Efficient Fenton Degradation of Perylene Diimide Dye Promoted by a Catalytic Amount of Cucurbit[8]uril
TL;DR: A new method for promoting the degradation of a perylene diimide (PDI) dye, through Fenton reaction with cucurbit[8]uril (CB[8]) as a supramolecular catalyst to accelerate the Fenton degradation.
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.