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Mostrando ítems 1-10 de 23
Artículo
Studies on the diastereoselective oxidation of 1-thio-β-D-glucopyranosides: synthesis of the usually less favoured RS sulfoxide as a single diastereoisomer
(Royal Society of Chemistry, 2015)
A detailed study on the diastereoselective oxidation of 1-thio-β-D-glucopyranosides is reported. It has been shown that the sense and the degree of stereochemical outcome of the oxidation are highly depen- dent on the ...
Artículo
Improved non-covalent biofunctionalization of multi-walled carbon nanotubes using carbohydrate amphiphiles with a butterfly-like polyaromatic tail
(Springer, 2010)
We have developed an efficient strategy for the non-covalent functionalization of multi-walled carbon nanotubes (MWCNTs) which allows a biomimetic presentation of carbohydrates on their surface by π-π stacking interactions. ...
Artículo
DMAP-Catalysed Sulfinylation of Diacetone-D-Glucose: Improved Method for the Synthesis of Enantiopure tert-Butyl Sulfoxides and tert-Butanesulfinamide
(Wiley Online Library, 2014-11)
An improved method for the tert-butanesulfinylation of diacetone glucose with tert-butanesulfinyl chloride is reported. The method is based on a beneficial effect of catalytic DMAP, which enhances both the rate of the ...
Artículo
Pseudo enantiomeric mixed s/p ligands derived from carbohydrates for the 1,4-addition of phenyl boronic acid to cyclohexenone
(Royal Society of Chemistry, 2016)
The application of phosphinite-thioglycosides and phosphine-thioglycosides ligands in the Rh(I)-catalyzed 1,4-addition of phenylboronic acid to cyclohexenone is reported. Among the ligands tested, phosphinite-thioglycoside ...
Artículo
Steric Tuning of Sulfinamide/Sulfoxides as Chiral Ligands with C1, Pseudo-meso, and Pseudo‑C2 Symmetries: Application in Rhodium(I)-Mediated Arylation
(ACS, 2019-07-31)
A new family of sulfinamide/sulfoxide derivatives was synthesized as chiral bidentate ligands by stereoselective additions of methylsulfinyl carbanions to N-tert-butylsulfinylimines. The new ligands, with C1, pseudo-meso, ...
Artículo
Phosphinite Thioglycosides Derived from Natural D-Sugars as Useful P/S Ligands for the Synthesis of Both Enantiomers in Palladium-Catalyzed Asymmetric Substitution
(Georg Thieme Verlag, 2005)
Phosphinite thioglycosides I for which a modular synthetic approach is reported, were found highly efficient catalyst precursors for palladium(0)-catalyzed asymmetric substitution. Both enantiomers of the allylated products ...
Artículo
Enantioselective synthesis of 4-amino-3,4-dihydrocoumarins and their non-cyclic hydroxyester precursors: Biological evaluation for the treatment of glioblastoma multiforme
(Elsevier, 2022)
The stereoselective addition of ethyl acetate enolate to the C═N bond of N-tert-butylsulfinylimines has been investigated in depth. A significant effect of the LHMDS amount and the N-sulfinylimine nature on the stereoselectivity ...
Artículo
Biological Evaluation of Carbohydrate-based Aprepitant Analogs for Neuroblastoma Treatment
(Elsevier, 2024)
Different studies using Aprepitant, a NK1R antagonist currently used as a clinical drug for treating chemotherapy-related nausea and vomiting, have demonstrated that pharmacological inhibition of NK1R effectively reduces ...
Artículo
Tailoring carbon nanotube surfaces with glyconanorings: New bionanomaterials with specific lectin affinity
(Royal Society of Chemistry, 2009)
Remarkably stable, water-soluble glyconanoring-coated SWCNTs were prepared by self organization and photopolymerization of neutral diacetylene-based glycolipids on the nanotube surface; the nanoconstructs are able to engage ...
Artículo
Synthesis and characterization of enantiopure chiral NH2/SO palladium complexes
(Royal Society of Chemistry, 2023)
A series of enantiopure chiral NH2/SO palladium complexes have been synthesised with high yields by treating the corresponding tert-butylsulfinamide/sulfoxide derivatives with Pd(CH3CN)2Cl2. The enantiopure chiral ligands ...