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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Coordination nanotubes self-assembled from cucurbit[7]uril and lanthanide cations
TL;DR: In this article, a series of complexes based on the macrocyclic ligand cucurbit[7]uril (Q[7]) with formulas {La2(H2O)12Q[ 7] ·2(ZnCl4)·2Cl·31H 2O (1), {Ln2(Cucurbit]URil) 12Q[ 6] · 2Cl·xCucURB[7]-
Journal ArticleDOI
Facile preparation and application of luminescent cucurbit[10]uril-based porous supramolecular frameworks
TL;DR: In this article, the authors reported the facile preparation of two solid luminescent materials made from cucurbit[10]uril-based porous supramolecular assemblies, which exhibited fluorescence enhancement or colour changing fluorescence emission.
Journal ArticleDOI
Cucurbit[n]urils for supramolecular catalysis
TL;DR: This review provides insights into the mechanism of CB[n]s based supramolecular catalysis and may help scientists find new opportunities in this field.
Journal ArticleDOI
Enhanced cytotoxicity of benzimidazole carbamate derivatives and solubilisation by encapsulation in cucurbit[n]uril
TL;DR: MEABZ, a new benzimidazole, is up to ten times more cytotoxic than the parent drug albendazole and the MEABZ isomers A and B and HEABZ show no activity, providing structure-activity data for this important class of anticancer agents.
Journal ArticleDOI
From Packed "Sandwich" to "Russian Doll": Assembly by Charge-Transfer Interactions in Cucurbit[10]uril.
TL;DR: The recognition properties of CB[10] are presented toward a series of bipyridinium guests including the tetracationic cyclophane known as blue box along with electron-rich guests and the influence of encapsulation on the charge-transfer interactions between guests is detailed.
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.