A5012488783- Parasitic Infections and Diagnostics
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Free Radicals and Antioxidants
- Synthesis and Biological Evaluation
- Crystallography and molecular interactions
- Nonlinear Optical Materials Research
- Dermatological and COVID-19 studies
- Phenothiazines and Benzothiazines Synthesis and Activities
- Extraction and Separation Processes
- Vanadium and Halogenation Chemistry
- Natural Products and Biological Research
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Chemical Reaction Mechanisms
- Science, Technology, and Education in Latin America
- Halal products and consumer behavior
- Islamic Finance and Banking Studies
- Crystal structures of chemical compounds
- Polyoxometalates: Synthesis and Applications
- Computational Drug Discovery Methods
- Molecular Junctions and Nanostructures
- Photodynamic Therapy Research Studies
- Healthcare Systems and Technology
- Medical research and treatments
- Microwave-Assisted Synthesis and Applications
Universidad Veracruzana
2019-2023
Universidad Nacional Autónoma de México
1983-2017
The University of Texas Rio Grande Valley
2015
A novel O-carboxymethyl chitosan Schiff base (OCMCS-SB) was synthesized by condensation of and o-vanillin evaluated as an adsorbent for Cd(II).The structure the characterized through Fourier transform infrared spectroscopy, thermogravimetric analysis/differential thermal gravity, X-ray diffraction scanning electron microscopy.The effect dose, pH, concentration, contact time in adsorption experiments optimum pH value found at 5.5.The isothermal data fitted well with Langmuir isotherm...
The formylation of aromatic substrates is an important reaction in organic chemistry. Indeed, several protocols have been published to afford aldehydes, which are precursors materials and medicinal One useful, nevertheless poorly described protocol the Duff reaction, normally carried out acetic or trifluoroacetic acids. In quest for a suitable reproducible introduce formyl group within 7-hydroxy-4-methylcoumarin, we found that can be presence zinc (II) acetate dimethylformamide yield...
DFT computation suggests that two dipolar chromophores in rotation around an organic bridge could be aligned by electric field.
The synthesis of six Mannich bases derived from hydroxycoumarins was carried out in moderate yields, two these derivatives were described for the first time. Conformational analysis performed through DFT theoretical calculations explaining formation stable membered rings based on intramolecular hydrogen bonds within structure. These findings correlated with antiproliferative activity. biological activity their HeLa cancer cell line is time, showing that compounds able to inhibit...
El Instituto de Química (IQ) la UNAM, a sus 75 años existencia, se ha forjado como una institución sólida y prestigio internacional. Recientemente, las líneas investigación con mayor impacto en el IQ-UNAM, por su trascendencia todas áreas química, es catálisis. En IQ cuenta infraestructura necesaria para llevar cabo básica aplicada área catálisis homogénea. La participación diversos programas posgrado permite generación productos investigación, proyectos colaboración industria, conocimiento...
Abstract Isatoic anhydride (ISA) is a versatile molecule which known as chemical precursor for myriad of materials and pharmaceuticals. Its reactivity governed by the chemistry heterocyclic ring, being nucleophilic attack, characteristic reaction explains ring opening functionalization this intermediary; in contrast, electrophilic attack useful to functionalize amide‐like moiety within well some positions benzenic moiety. In work, theoretical study ISA series substituted derivatives,...
Abstract Coumarins are widely distributed as secondary metabolites and popular structural motifs among known anticancer agents; their planarity electronic environment very important building blocks for bioactive compounds. Due to the broad scope of biological activity, properties these molecules remain an goal medicinal chemistry. In this work, knowledge understanding correlation between global reactivity a series hydroxycoumarins lead develop statistical model study proapoptotic activity...
In his 1959 Rede Lecture, "The Two Cultures and the Scientific Revolution," C. P. Snow warned of a gulf that had opened between literary intellectuals natural scientists, across which existed mutual incomprehension threatened to undermine university's ability solve world's most pressing problems.Reflecting on experience as both novelist research scientist, appealed for greater understanding what he saw two distinct cultures, yet also asserted importance sciences over literature securing...