Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Pilar Prados"'
Autor:
María Teresa Murillo, Rosa Sedano, Javier de Mendoza, Amparo González-Espartero, Ana Núñez, Pilar Prados, Hitos Galán
Publikováno v:
European Journal of Organic Chemistry. 2011:3959-3969
For nuclear hydrometallurgical separation process development, it is necessary to demonstrate the stability of the extracting systems, since it is well known that radio- and hydrolytic degradation leads to undesirable effects, such as a decrease in s
Publikováno v:
European Journal of Organic Chemistry. 2010:1249-1257
The synthesis of dendricalixarenes 1 and 2 containing azo groups at the upper rim of a calix[4]- or calix[6]arene and the corresponding model compounds 3-5 are described. Because the kinetics of the trans to cis isomerization were too fast for accura
Publikováno v:
Solvent Extraction and Ion Exchange. 27:107-131
Bisdiglycolamides 1–9 were synthesized and studied as extracting agents for An(III) and Ln(III) from nitric acid solutions. Compounds 1d‐3 with rigid spacers as m‐xylylene and 6b‐9 with more flexible alkyl chain linkers, show higher selectivi
Autor:
Marta Almaraz, Margarita Segura, José-Carlos Iglesias-Sánchez, Javier de Mendoza, Pilar Prados, Jorge Sánchez-Quesada, A.G. Espartero, María Teresa Murillo
Publikováno v:
Radiochimica Acta. 96:241-257
Bismalonamides 1–8 and bisthiomalonamides 9–13 were synthesised and studied as extracting agents for Am(III) and Eu(III) from nitric acid solutions into organic solvents. Bismalonamides 7a and 7g display higher distribution coefficients in chlori
Autor:
Pilar Prados, Roberto Quesada
Publikováno v:
Supramolecular Chemistry. 20:201-216
The interest in anion coordination chemistry has grown enormously in the last few years. Macrocyclic and macrocyclic-based architectures are at the forefront of the development of new anion receptors. This mini review is intended to illustrate some o
Publikováno v:
Organic Letters. 8:2571-2574
We report the synthesis and complexing properties of the new cavity-extended receptor 1, a C,C-linked bi-calix[4]arene that selectively binds [70]fullerene in a 2:1 tennis-ball fashion. [structure: see text]
Autor:
Pilar Prados, César J. Pastor, Beatriz Souto, Javier de Mendoza, Jose Carlos Iglesias-Sánchez
Publikováno v:
The Journal of Organic Chemistry. 70:10400-10407
[structure: see text] In this article we describe the selective O-benzylation of para-unsubstituted calix[6]arene 1 in rings 1 and 4 (2a-c) and the subsequent alkylation of phenol groups with alpha-haloesters (methyl esters 3a, 3c, and 3e; tert-butyl
Publikováno v:
European Journal of Organic Chemistry. 2005:4093-4097
The synthesis of the A,D-m-xylylene-bridged B,C,E,F-tetra-O-alkylcalix[6]arenes 1b–c and the A,D-B,C;E,F-triply bridged calix[6]arenes 2a–c is described. The cone conformation of the new bridged calix[6]arenes has been established by a full set o
Autor:
Henk M. Keizer, Pilar Prados, Javier de Mendoza, Juan J. González, Rint P. Sijbesma, Margarita Segura, E. W. Meijer
Publikováno v:
Chemistry : A European Journal, 11(16), 4602-4608. Wiley-VCH Verlag
The preorganization of bifunctional 2-ureido-4-pyrimidinones mediated by either 1,3-substituted adamantane or meta-substituted phenylene ring linkers leads to the preferred formation of stable pentameric (1) 5 and hexameric (2) 6 assemblies, respecti
Publikováno v:
European Journal of Organic Chemistry. 2004:2848-2852
A simple and direct protocol is reported for the synthesis of the first non-symmetrically substituted 1,3-alternate conformers of calix[4]arenes by selective mono-deacylation of a tribenzoyl precursor under basic conditions, followed by dialkylation.