Tiara[<i>n</i>]uril: A Glycoluril-Based Macrocyclic Host with Cationic Walls
作者:Pradeep Kumar Chandrakumar、Rajni Dhiman、Clifford E. Woodward、Hasti Iranmanesh、Jonathon E. Beves、Anthony I. Day
DOI:10.1021/acs.joc.8b02913
日期:2019.4.5
The synthesis of new cationic macrocyclic host molecules is described. These macrocycles are comprised of glycoluril oligomers linked to two pyrazolium groups, which form part of a cationic wall facing into their cavities. A number of derivatives have been prepared with an objective to increasing the cavity size, and each new product has been fully characterized. Preliminary investigations of pKas
描述了新的阳离子大环主体分子的合成。这些大环由连接两个吡唑基的甘脲低聚物组成,两个吡唑基形成面对它们的腔的阳离子壁的一部分。为了增加型腔的尺寸,已经制备了许多衍生物,并且每种新产品都已得到充分表征。对Me 10 Tu [3] 2+的p K a s的初步研究和L-谷氨酰胺的相互作用表明,结合具有H键供体基团的阴离子分子的潜力。
[EN] ACYCLIC CUCURBIT(N)URIL TYPE MOLECULAR CONTAINERS TO TREAT INTOXICATION AND DECREASE RELAPSE RATE IN SUBSTANCE ABUSE DISORDERS<br/>[FR] RECIPIENTS MOLECULAIRES DE TYPE CUCURBIT(N)URIL ACYCLIQUE POUR TRAITER L'INTOXICATION ET REDUIRE LE TAUX DE RECHUTE DANS DES TROUBLES DE TOXICOMANIE
申请人:UNIV MARYLAND
公开号:WO2016061571A1
公开(公告)日:2016-04-21
Provided are methods for reversing the effects of drugs of abuse. The method involves administering acyclic CB[n]-type compounds to a mammal in need of the reversal of the effects from a drug of abuse.
Controllable Synthesis of Dodecamethylcucurbit[6]uril and Its Application in Separating Phenylenediamine Isomers
作者:Long Cao、Yun-Qian Zhang、Rui-Lian Lin、Jing-Xin Liu、Zhu Tao
DOI:10.1021/acs.cgd.1c00141
日期:2021.5.5
interactions between Me12Q[6] and phenylenediamine (PDA) isomers were also investigated both in the solid state and in aqueous solution. Importantly, the Me12Q[6]/[ZnCl4]2–-based supramolecular framework can selectively accommodate o-PDA rather than its isomers. The present study suggests the practical application of Me12Q[6] in separating PDA isomers and the potential utility of Me12Q[6] in isolating other
Induction of liquid-crystallinity in molecular clips by binding of different guest molecules
作者:Johanna L. M. van Nunen、Roeland J. M. Nolte
DOI:10.1039/a700936d
日期:——
The use of clip molecules based on diphenyl- and
dimethyl-glycoluril
as building blocks for liquid-crystalline materials is described. The
synthesis is performed by an esterification of hydroxy-derived clip
molecules with trialkoxybenzoyl chloride. 1H NMR titrations
show that these molecules, despite the steric crowding, are still able
to bind guest molecules in the cleft. The clip molecules show no
liquid-crystalline properties, except those based on dimethylglycoluril.
However, clips with alkyl chains of at least ten carbon atoms display
liquid-crystalline behaviour upon binding of guest molecules, which can
be tuned by the substituent of the guest molecules.
A water soluble tetramethyl-substituted cucurbit[8]uril obtained from larger intermediates?
作者:Xin-Xin Wang、Fei-Yang Tian、Ming Liu、Kai Chen、Yun-Qian Zhang、Qian-Jiang Zhu、Zhu Tao
DOI:10.1016/j.tet.2019.130488
日期:2019.9
A new watersoluble tetramethyl-substituted cucurbit[8]uril (Me4Q[8]) was easily isolated from cucurbit[n]uril product mixture which was synthesized by using the dimer of glycoluril and diether of dimethyl substituted glycoluril. Crystal structure analysis shows that Me4Q[8] is constructed of building blocks: three dimmers and two dimethyl glycolurils, the two dimethyl glycolurils are separated by