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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Cucurbit[8]uril-Regulated Colloidal Dispersions Exhibiting Photocontrolled Rheological Behavior.
TL;DR: This smart colloidal solution contains hybrid raspberry-like colloids prepared by employing cucurbit[8]uril as a supramolecular linker to assemble functional Fe3 O4 nanoparticles onto a silica core.
Journal ArticleDOI
N-Doped holey carbon materials derived from a metal-free macrocycle cucurbit[6]uril assembly as an efficient electrocatalyst for the oxygen reduction reaction.
TL;DR: The first example of the preparation of nitrogen-doped holey carbon (NHC) with abundant in-plane holes derived from a rigid macrocycle cucurbit[6]uril self-assembly is reported.
Journal ArticleDOI
Molecular Insight into the Interaction between Camptothecin and Acyclic Cucurbit[4]urils as Efficient Nanocontainers in Comparison with Cucurbit[7]uril: Molecular Docking and Molecular Dynamics Simulation.
TL;DR: Molecular docking and molecular dynamics simulations show that CB[7] and its two acyclic derivatives form stable inclusion complexes with CPT especially through hydrophobic interactions, and highlights aCB[4]s due to the structural properties and flexible nature as a better nanocontainers for controlled release delivery of pharmaceutical agents in comparison with CB[ 7]nanocontainer.
Journal ArticleDOI
Graphene oxide based fluorescence sensor for cucurbit[7]uril
Ramesh Prakash,Govindaraj Usha,Paramasivan Sivaranjana,Karuppasamy Karpagalakshmi,Lakshminarayanan Piramuthu,Narayanan Selvapalam +5 more
TL;DR: RhBGO, a new graphene based material, could be a very useful tool for the detection of CB[7] in buffer with good selectivity and sensitivity.
Journal ArticleDOI
Involvement of unusual noncovalent interactions in the self-assembly of cucurbit[6]uril with [CdCl4]2− anions
Xiaowei Cui,Shi-Yan Chen,Wang Chuanzeng,Wen-Xuan Zhao,Tao Sun,Xin-Long Ni,Yun-Qian Zhang,Zhu Tao +7 more
TL;DR: In this paper, the self-assembly of a 1D Q[6] porous channel was investigated in the presence of [CdCl 4 ] 2− anions and a linear cationic dibutylamine guest.
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.