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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Journal ArticleDOI
Cucurbit[7]uril host-guest complexations of aza-, diaza-, and oxa, azaspirocycloalkanes in aqueous solution
TL;DR: The host-guest complexations of fifteen protonated azaspirocyclic, oxa,azaspirocycleic, and diazaspiro cyclic guests, three-dimensional analogues of morpholinium, piperidinium, and piperazinium catio...
Journal Article
Supramolecular Interaction of Coumarin 1 Dye with Cucurbit[7]uril as Host: Combined Experimental and Theoretical Study B
TL;DR: In this article, a supramolecular strategy was adopted to improve the fluorescence intensity of coumarin dye through its interaction with the relatively new host cucurbit[7]uril (CB[7]).
Journal ArticleDOI
A three-in-one crystal of mixed sized cucurbit[ n ]uril homologues
Oksana Danylyuk,Volodymyr Sashuk +1 more
TL;DR: In this paper, the authors reported the self-assembly of three macrocyclic members of the cucurbit[n]uril family, including a macrocycle-within-macrocycle type.
Book ChapterDOI
The Use of Cucurbit[n]urils as Organic Nanoreactors
TL;DR: This chapter will review the properties of CB[ n ] and their effects on included gests, and provide a representative survey of their use as nanoreactors to control and catalyze chemical reactions at the molecular level.
Journal ArticleDOI
Efficient synthesis of cucurbiturils and their derivatives using mechanochemical high-speed ball milling (HSBM):
Wenhao Xu,Chengyu Li +1 more
TL;DR: In this paper, mechanical ball milling was used to selectively prepare cucurbit[6]uril (CB[6]) and its derivatives without the use of catalysts and solvents.
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.
Journal ArticleDOI
A Molecular Bowl with Metal Ion as Bottom: Reversible Inclusion of Organic Molecules in Cesium Ion Complexed Cucurbituril
Journal ArticleDOI
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.
Journal ArticleDOI
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.