Anion Receptors based on Ureidocalix[4]arenes Immobilised in the Partial cone Conformation

0420968 - ÚCHP 2014 RIV GB eng J - Journal Article
Hudeček, O. - Budka, J. - Dvořáková, H. - Cuřínová, Petra - Císařová, I. - Lhoták, P.
Anion Receptors based on Ureidocalix[4]arenes Immobilised in the Partial cone Conformation.
New Journal of Chemistry. Roč. 37, č. 1 (2013), s. 220-227. ISSN 1144-0546. E-ISSN 1369-9261
R&D Projects: GA ČR GA203/09/0691; GA AV ČR IAAX08240901
Institutional support: RVO:67985858
Keywords : anion receptors * ureidocalix[4]arenes * partial cone conformation
Subject RIV: CC - Organic Chemistry
Impact factor: 3.159, year: 2013

A novel method enabling the synthesis of receptors based on the calix[4]arenes immobilized in the partial cone conformation is reported. The application of a protection/deprotection strategy using nosyl groups enables the regioselective introduction of functional groups (NO2 and NH2) into the upper rim of calix[4] arenes, leading finally to the substitution pattern so far inaccessible to calixarene chemistry. The introduction of two ureido functions at the para positions of the partial cone conformer yields a novel type of receptor which can bind anions even in a highly competitive solvent (DMSO). This revealed that the partial cone conformation, so far rather ignored in supramolecular chemistry, can be also very useful in design of novel anion receptors.
Permanent Link: http://hdl.handle.net/11104/0227461