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Mostrando ítems 1-10 de 23
Artículo
Direct evidence for a coordination-insertion mechanism of ethylene oligomerization catalysed by neutral 2,6-bisiminopyridine iron monoalkyl complexes
(Royal Society of Chemistry, 2014)
1H NMR studies on ethylene oligomerization catalysed by the neutral monoalkyl complex [Fe(Me)(iPrBIP)] allow direct observation of alkyl iron intermediates as well as reversible ethylene coordination to the metal center, ...
Artículo
Glycoligand-targeted core-shell nanospheres with tunable drug release profiles from calixarene-cyclodextrin heterodimers
(Royal Society of Chemistry, 2014)
Stable core–shell nanospheres self-assemble in water from heterodimers combining a hydrophobic calix[4]arene moiety and a hydrophilic β-cyclodextrin head; their potential to encapsulate and provide sustained release of the ...
Artículo
Effects of Sugar Functional Groups, Hydrophobicity, and Fluorination on Carbohydrate–DNA Stacking Interactions in Water
(American Chemical Society, 2014)
Carbohydrate–aromatic interactions are highly relevant for many biological processes. Nevertheless, experimental data in aqueous solution relating structure and energetics for sugar–arene stacking interactions are very ...
Artículo
Trehalose- and Glucose-Derived Glycoamphiphiles: Small-Molecule and Nanoparticle Toll-Like Receptor 4 (TLR4) Modulators
(American Chemical Society, 2014)
An increasing number of pathologies have been linked to Toll-like receptor 4 (TLR4) activation and signaling, therefore new hit and lead compounds targeting this receptor activation process are urgently needed. We report ...
Artículo
Identification of a promising multivalent inhibitor of the DC-SIGN dependent uptake of HIV-1 and Dengue virus
(Elsevier, 2014)
DC-SIGN is a C-type lectin receptor on antigen presenting cells (dendritic cells) which has an important role in some viral infection, notably by HIV and Dengue virus (DV). Multivalent presentation of carbohydrates on ...
Artículo
Importance of the polarity of the glycosaminoglycan chain on the interaction with FGF-1
(Oxford University Press, 2014)
Heparin-like saccharides play an essential role in binding to the fibroblast growth factor (FGF)-1 and to their membrane receptors fibroblast growth factor receptor forming a ternary complex that is responsible of the ...
Artículo
Hemilability of P(X)N-type ligands (X = O, N–H): rollover cyclometalation and benzene C–H activation from (P(X)N)PtMe2 complexes
(Royal Society of Chemistry (Great Britain), 2014)
The thermolyses of (tBuP(O)N)PtMe2 (1, tBuP(O)N = (di-tert-butylphosphinito)pyridine) and (tBuP(N–H)N)PtMe2 (3, tBuP(N–H)N = (di-tert-butylphosphino)-2-aminopyridine) in benzene-d6 were investigated. With (tBuP(O) N)PtMe2, ...
Artículo
Sequential reduction and alkyl exchange reactions of bis(imino)pyridine dialkyliron(II) with trimethylaluminum
(American Chemical Society, 2014)
The sequence of reactions ensuing when the 2,6-bis(imino)pyridine Fe(II) dialkyl complexes [Fe(CH2SiMe3)2(BIP)] react with trimethylaluminum is described in detail. The first step is the reduction of the dialkyl to the ...
Artículo
Protonolysis of Fe-C bonds of a diiminopyridineiron(II) dialkyl complex by acids of different strengths: Influence of monoanionic ligands on the spectroscopic properties of diiminopyiridine-FeY2 complexes
(Elsevier, 2014)
The reaction of the dialkyliron complex [Fe(CH2SiMe 3)2(MesBIP)] (MesBIP = 2,6-bis((N-mesityl)acetimidoyl)pyridine) with protic acids (HY) of different strengths (Y = C6F5O, CF3CO2, Cl, CF3SO3) invariably leads to the ...
Artículo
Synthesis of Chondroitin Sulfate Oligosaccharides Using N-(Tetrachlorophthaloyl)- and N-(Trifluoroacetyl)galactosamine Building Blocks
(Wiley-Blackwell, 2014)
We have explored synthetic routes for the preparation of chondroitin sulfate (CS) oligosaccharides based on the use of N-tetrachlorophthaloyl- (N-TCP) and N-trifluoroacetyl-substituted (N-TFA) galactosamine building blocks. ...