A5028249737- Carbohydrate Chemistry and Synthesis
- Fluorine in Organic Chemistry
- Glycosylation and Glycoproteins Research
- Chemical Synthesis and Analysis
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Antibiotics Pharmacokinetics and Efficacy
- Pharmacological Effects and Toxicity Studies
- Pharmacovigilance and Adverse Drug Reactions
- Nanocomposite Films for Food Packaging
- Click Chemistry and Applications
- Chemical Synthesis and Reactions
- Crystallography and molecular interactions
- Synthesis and Biological Evaluation
- Synthesis of Organic Compounds
- Synthesis and biological activity
- Nonlinear Optical Materials Research
- Molecular Sensors and Ion Detection
- Biochemical and Molecular Research
- Organoselenium and organotellurium chemistry
- Multicomponent Synthesis of Heterocycles
- Synthesis and Reactions of Organic Compounds
- Conducting polymers and applications
- Nematode management and characterization studies
- Luminescence and Fluorescent Materials
Universidad de Sevilla
2012-2021
Hospital del Trabajador
2020
Universidad Andrés Bello
2020
Rede de Química e Tecnologia
2015
Center for New American Media
2014
Pontificia Universidad Católica de Chile
2012-2013
In-Q-Tel
2010-2012
Hospital de Basurto
1994
University of the Basque Country
1994
Instituto de la Grasa
1988-1990
In this work, we use electrophysiological and metabolomic tools to determine the role of chitosan as plant defence elicitor in soil for preventing or manage root pests diseases sustainably. Root exudates include a wide variety molecules that plants microbiota communicate rhizosphere. Tomato were treated with chitosan. from tomato analysed at 3, 10, 20 30 days after planting (dap). We found, using High Performance Liquid Chromatography (HPLC) Excitation Emission Matrix (EEM) fluorescence,...
Noncovalent interactions of anions with electron-deficient aromatic rings that have been studied so far involve non-heteroaromatic or nitrogen-based heteroaromatic systems. Here we report the first case an organic oxygenated system, in particular tri-aryl-pyrylium tetrafluoroborate for which noncovalent anion–π pyrylium cation anion experimentally detected and demonstrated by means 19F NMR spectroscopy solution. A series salts were synthesized presence BF3·Et2O, direct reaction 4-substituted...
Reaction of primary aliphatic nitro compounds with or secondary α-nitroalkenes in the presence catalytic amounts triethylamine potassium carbonate affords good yields 1,3-dinitro compounds.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChiral synthons for the total synthesis of fluoro amino acids and analogs antibiotic sugarsRamine Faghih, Francisca Cabrera Escribano, Sergio Castillon, Jordi Garcia, Alain Olesker, Ton That ThangCite this: J. Org. Chem. 1986, 51, 24, 4558–4564Publication Date (Print):November 1, 1986Publication History Published online1 May 2002Published inissue 1 November 1986https://doi.org/10.1021/jo00374a013RIGHTS & PERMISSIONSArticle...
Novel types of fluorescent and quaternized pyridinium–chitosan derivatives have been synthesized their characteristics as potential NLO-phore biomaterials disclosed by DFT calculations.
A synthesis of protected C-2β- and C-2α-fluoro oleandrosyl fluorides is presented; coupling these carbohydrates with avermectin B1a monosaccharide 5-O-t-butyldimethylsilyl derivative, followed by deprotection, furnished the title compounds whose biological activity was evaluated.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of derivatives 3-amino-2,2-difluoro-2,3,6-trideoxy-L-lyxopyranose (2,2-difluorodaunosamine)Aimee Dessinges, Francisca Cabrera Escribano, Gabor Lukacs, Alain Olesker, and Ton That ThangCite this: J. Org. Chem. 1987, 52, 8, 1633–1634Publication Date (Print):April 1, 1987Publication History Published online1 May 2002Published inissue 1 April...
A general approach to enantiopure conformationally constrained sugar derived α/β- and α/γ-peptides has been established. Five-membered ring α/β-peptides were synthesized via formyl C-glycofuranosides, easy available from hexose-derived azido-2-equatorial-OH-glycopyranosides by DAST-promoted contraction. By means of a regioselective oxidation with TEMPO at C-6 3-azido glycopyranosides as the key step, two- three-residue having six-membered obtained in good yields under very simple...
Abstract Fluorodehydroxylation of 1,6-anhydro-β-D-gluco- and galacto-pyranose derivatives was investigated on compounds having only one free hydroxy group. The reaction proceeded with complete retention inversion configuration at C-3 C-4 respectively allowed the stereospecificic preparation 1, 6-anhydro-2, 3, 4-trideoxy-2,3,4-trifluoro-β-D-gluco- galactopyranose. Acid catalyzed opening their 6-anhydro bridge gave corresponding 6-di-O-acetyl gluco- galactopyranose derivatives.