Mostrando ítems 1-10 de 100
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Novel fluorescent anthracene–bodipy dyads displaying sensitivity to pH and turn-on behaviour towards Cu(II) ions
(Royal Society of Chemistry, 2017)
Three bichromophoric compounds containing anthracene and bodipy moieties connected by different spacers have been synthesized and fully characterized. The set of spacers comprises a variety of bridges (short and flexible ...
Time resolved fluorescence of naproxen in organogel medium
The interaction between non-steroidal anti-inflammatory drug naproxen and the self assembled fibrillar network created by a low molecular weight organogelator has been probed by means of time resolved fluorescence spectroscopy.
Ratiometric fluorescence sensing of phenylalanine derivatives by synthetic macrocyclic receptors
The supramolecular analytical behavior of eight pseudopeptidic fluorescent receptors (1a-c, 2a-c, 3, 4) has been studied. The receptors are either macrocyclic or open chain derivatives based on the naphthalene chromophore. ...
New polymer-supported photocatalyst with improved compatibility with polar solvents. Synthetic application using solar light as energy source
A new kind of supported photocatalysts derived from low-crosslinked polystrene, containing Rose Bengal and pyridinium groups, is described. Such polymers are capable to catalyze the quantitative synthesis of 5-hydroxy-5H ...
Pd catalysts immobilized onto gel-supported ionic liquid-like phases (g-SILLPs): A remarkable effect of the nature of the support
New polymeric materials containing functional sites analogous to ionic liquids have been synthesized. Those materials are a supported reservoir for the active Pd species. Their catalytic activity has been evaluated for the ...
Synthetic application of photoactive porous monolithic polymers
The oxidation of 2-furoic acid to 5-hydroxy-5H-furan-2-one has been accomplished in quantitative yield in chloroform using a novel supported photocatalyst. This material comprises Rose Bengal grafted to the surface of a ...
C2 symmetrical nickel complexes derived from α-amino amides as efficient catalysts for the enantioselective addition of dialkylzinc reagents to aldehydes
A series of C2 symmetrical 1:2 Ni:L complexes derived from α-amino amides were studied for the enantioselective addition of dialkylzinc reagents to aldehydes. Different structural elements on the ligands seem to play an ...
Unraveling the Molecular Recognition of Amino Acid Derivatives by a Pseudopeptidic Macrocycle: ESI-MS, NMR, Fluorescence, and Modeling Studies
(American Chemical Society, 2009)
The binding between a pseudopeptidic macrocyclic naphthalenophane and different N-protected amino acid derivatives has been thoroughly studied by ESI-MS, NMR, fluorescence, and molecular modeling. Careful NMR titration ...
Bis(amino amides) derived from natural amino acids as chiral receptors for N-protected dicarboxylic amino acids
A family of bis(amino amides) derived from natural amino acids has been synthesized and tested for the NMR enantiodiscrimination, as chiral receptors, of some N-protected dicarboxylic amino acids. The influence of the amino ...
Synthesis and organogelating ability of bis-urea pseudopeptidic compounds
A large family of amphiphilic pseudopeptidic derivatives in which the aliphatic tails are connected to the pseudopeptidic moiety through urea functionalities have been prepared with excellent yields. The synthetic procedure ...