Now showing items 38115-38134 of 41898

    Synthesis and structure-activity relationship of new psychoactive substances. Role of ring-substitutions, amino-terminal group and alpha-carbon side chain length in the pharmacological profile of novel synthetic cathinones 

    Nadal Gratacós, Núria (Date of defense: 2023-05-12)

    Les substàncies psicoactives han estat consumides des de fa milers d´anys pels éssers humans per motius espirituals, medicinals, de plaer, productivitat o socials. Amb l'evolució de la química orgànica, els químics van ...

    Synthesis and Study of Functionalized Porphyrins as Organophotoredox Catalysts 

    Torres Yeste, Pol (Date of defense: 2022-12-20)

    [eng] Visible-light photocatalysis is currently one of the hottest research areas in organic chemistry, due to the possibility that offers to form C-C and C-Het bonds in a green, non-toxic and efficient way. Although ...

    Synthesis and versatile applications of oligoethylene glycol dendrons using click chemistry 

    Fransen, Peter (Date of defense: 2013-12-05)

    Dendrimers are a class of globular highly branched macromolecules with precise architecture. They consist of a multivalent surface with functional group, a core unit where branching starts, and the interior is made of ...

    Synthesis of 1S-ethyl-4-substituted quinolizidines and other potentially bioactive compounds 

    Semak, Vladislav (Date of defense: 2012-12-19)

    Esta Tesis Doctoral se presenta como Compendio de publicaciones. Los capítulos en los que se ha dividido la presente Tesis son los siguientes: Capítulo 1 – parte A: Enantioselective, Protecting Group-Free Synthesis of ...

    Synthesis of 2-Vinyl sphingolipids as S1PL inhibitors 

    Calderón i Almendro, Raquel (Date of defense: 2017-03-14)

    Sphingolipids (SLs) are components of eukaryotic cell membranes that in the last 30 years have shown not only a structural role but also be involved in signaling processes and cellular responses. Therefore, the development ...

    Synthesis of Acid Mesoporous Saponites and its Application in Catalytic Glycidol Hydrogenolysis 

    Gebretsadik, Fiseha Bogale (Date of defense: 2015-11-06)

    La reacció de hidrogenòlisis per l'obtenció de 1,3-propandiol (1,3-PD) a partir de glicerol requereix l'ús de cars metalls nobles y elevades condicions de reacció, tot i això, no s'ha d'oblidar el baix rendiment en 1,3-PD ...

    Synthesis of acoustic wave filters : ladder and transversal topologies : towards a practical implementation 

    Hueltes Escobar, Alberto (Date of defense: 2021-02-05)

    The meteoric growth of the mobile communication market for the last three decades has been strongly related with the evolution of the electroacoustic (EA) filter technology. With way over 5 billion cell phone users worldwide ...

    Synthesis of amino alcohols through one-popt catalytic boron addition sequences 

    Solé Marcé, Cristina (Date of defense: 2013-07-26)

    Els amino alcohols són estructures importants usades en la síntesis de productes naturals, fàrmacs i auxiliars o catalitzadors quirals aplicats en la síntesis orgànica asimètrica. Els organoborans poden ser utilitzats com ...

    Synthesis of antimicrobial peptides derived from BP100 and BPC194 

    Güell Costa, Imma (Date of defense: 2012-01-27)

    In the present PhD thesis we studied the solid-phase peptide synthesis of antimicrobial peptides derived from the lead peptides BP100 and BPC194. First, peptides derived from BP100 containing D-amino acids at different ...

    Synthesis of bi-magnetic core|shell and onion- like nanoparticles based on iron and manganese oxides 

    López Ortega, Alberto (Date of defense: 2012-09-27)

    Aquesta tesi engloba la síntesi i la caracterització estructural i magnètica de dos tipus de nanopartícules polymagnètiques: estructures nucli-escorça (core|shell, CS) i tipus ceba (onion-like). El primer sistema està ...

    Synthesis of biaryl bicyclic peptides for recognition of protein surfaces 

    Garcia Pindado, Júlia (Date of defense: 2017-05-12)

    The present thesis is based on the development and optimization of a solid-phase strategy to prepare biaryl bicyclic pentapeptides. Suzuki-Miyaura cross-coupling reactions were used to obtain the biaryl bridge. The metholodogy ...

    Synthesis of Biobased Polymers derived from Terpenes 

    Peña Carrodeguas, Leticia (Date of defense: 2017-07-04)

    Complexos aminotrifenolats d'Al (III) i Fe (III) combinats amb un nucleòfil han estat investigats com a catalitzadors binaris en la reacció de ROCOP per a l'obtenció de polímers bio-renovables perfectament alternats. S'ha ...

    Synthesis of C10‐C16 linear symmetrical ethers from n‐alcohols over heterogeneous acid catalysts 

    Casas Fernández, Carlos (Date of defense: 2013-12-13)

    Combustion of diesel fuel in a diesel engine is a complex process where several pollutants are emitted in the engine exhausts. To solve this problem and at the same time accomplish with the increasingly stringent regulations ...

    Synthesis of chiral furanoside diphosphinite and thioether-phosphinite compounds derived from d-(+)-xylose. Application as ligands in asymmetric catalytic processes 

    Guimet Vila, Eugeni (Date of defense: 2005-10-05)

    En els últims anys, la creixent demanda de compostos enantiomèricament purs (fàrmacs, agroquímics, additius.) ha impulsat el desenvolupament de la catàlisi asimètrica, sobretot emprant compostos organometàl·lics quirals ...

    Synthesis of colloidal nanomaterials through femtosecond laser ablation 

    Torres Mendieta, Rafael Omar (Date of defense: 2016-06-24)

    La investigación de esta tesis se centra en la producción de nanoestructuras metálicas dentro de aceites orgánicos y nano-ensambles por ablación láser en líquidos para resolver los mayores problemas en su producción por ...

    Synthesis of combretastatin analogues with antineoplastic properties 

    Conesa Milián, Laura (Date of defense: 2019-06-25)

    This doctoral thesis belongs to the field of medicinal and pharmacological chemistry. Its aim is the synthesis, characterization and biological evaluation of three families of aminocombretastatin derivatives, compound with ...

    Synthesis of compounds with potential biomedical activity: SARS-CoV-2 main protease inhibitors and ABA analogs 

    De la Hoz Rodríguez, Sergio (Date of defense: 2024-04-17)

    The COVID-19 pandemic, caused by the SARS-CoV-2 virus, has increased the development of new antiviral drugs to stop its spread. This work focused on synthesizing specific inhibitors of the Mpro protease, crucial for the ...

    Synthesis of cyclopropenium cations by carbyne transfer catalysis and applications in novel cyclopropene syntheses 

    Jeandin, Aliénor Celine Renee (Date of defense: 2023-10-27)

    L'objectiu principal d'aquesta Tesi ha estat el descobriment i el desenvolupament de noves reaccions químiques que impliquen la transferència catalítica de carbins a alquins, i les aplicacions d'aquestes noves reaccions a ...

    Synthesis of defect free YBa2Cu3O7-x films over 1µm by CSD using inkjet printing 

    Villarejo Reina, Bohores (Date of defense: 2018-09-14)

    El descubrimiento de los superconductores de alta temperatura (HTS) han supuesto un gran paso en el desarrollo de la tecnología energética. Entre ellos, el YBa2Cu3O7-x (YBCO) epitaxial, ha demostrado una de las mejores ...

    Synthesis of dinuclear complexes. From ligand design to catalysis 

    Martínez Ferraté, Oriol (Date of defense: 2013-07-25)

    La indústria química empra la catàlisi homogènia com eina en la síntesi de diversos productes, des de plàstics fins a medicaments. Normalment els catalitzadors homogenis són complexos mononuclears amb lligands difosfines ...