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Departamento de Química "Profesor José Carlos Vílchez Martín": Recent submissions
Now showing items 21-40 of 250
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(NHC)M Cores as Catalysts for the Olefin Aziridination Reaction (M= Cu, Ag, Au): Evidencing a Concerted Mechanism for the Nitrene Transfer Process
Pérez Ruíz, Jorge; Díaz Requejo, María Mar
; Pérez Romero, Pedro José (American Chemical Society, 2022-11-28)
Complexes [(NHC)MCl] (M = coinage metal) have been evaluated as catalyst for the olefin aziridination reaction using PhI=NTs as nitrene source, with moderate to high activity being found depending of the metal and the ... -
Micellar Catalysis as a Tool for C-H Bond Functionalization To-ward C-C Bond Formation
Borrego, Elena; Caballero Bevia, Ana; Pérez Romero, Pedro José (American Chemical Society, 2022-11-28)
Micelles generated upon dissolving surfactants in water can be employed as nano-vessels for catalytic transformations, in the so-called micellar catalysis methodology. This review is focused onto the use of micellar ... -
Gold nanoparticle-catalysed functionalization of carbon-hydrogen bonds by carbene transfer reactions
Martínez Laguna, Jonathan; Mollar Cuni, Andres; Ventura Espinosa, David; Martín, Santiago; Caballero Bevia, Ana; Mata, Jose A.; Pérez Romero, Pedro José (Royal Society of Chemistry, 2022-02-23)
Gold nanoparticles stabilized by NHC ligands and supported onto reduced graphene oxide (rGO) catalyse the functionalization of cyclohexane and benzene C-H bonds upon insertion of carbene CHCO2Et (from N2=CHCO2Et) groups. ... -
Direct Benzene Hydroxylation with Dioxygen Induced by Copper Complexes: Uncovering the Active Species by DFT Calculations
Borrego, Elena; Tiessler Sala, Laura; Lázaro, Jesús J.; Caballero Bevia, Ana; Pérez Romero, Pedro José; Lledós, Agustí (America Chemical Society, 2022-07-14)
The direct oxidation of benzene into phenol using molecular oxygen at very mild temperatures can be promoted in the presence of the copper complex TpBr3Cu(NCMe) in the homogeneous phase in the presence of ascorbic acid as ... -
Efect of low‑frequency ultrasound on disaggregation, growth and viability of an extremotolerant cyanobacterium
Robles, María; Garbayo Nores, Inés; Wierzchos, Jacek; Vílchez Lobato, Carlos; Cuaresma Franco, María (Springer, 2022)
The eficacy of low-frequency ultrasound pulses in cell disaggregation of Chroococcidiopsis sp. aggregates has been studied as a possible strategy to improve the productivity and operation of the cultures. The modulation ... -
Toward Light-Controlled Supramolecular Peptide Dimerization
Fernandes, Rita J.; Remón Ruiz, Patricia; Moro, Artur J.; Seco, André; Ferreira, Ana S. D.; Pischel, Uwe; Basílio, Nuno (American Chemical Society, 2021-06-01)
The selective photodeprotection of the NVoc-modified FGG tripeptide yields the transformation of its 1:1 receptor−ligand complex with cucurbit[8]uril into a homoternary FGG2@CB8 assembly. The resulting lightinduced ... -
Selective Functionalization of Arene C(sp2 )−H Bonds by Gold Catalysis: The Role of Carbene Substituents
Pizarro Javier, Juan Diego; Schmidtke, Inga L.; Nova, Ainara; Romero Fructos-Vázquez, Manuel; Pérez Romero, Pedro José (American Chemical Society, 2022-05-25)
The complete regioselective incorporation of carbene units to nonactivated arene rings has been achieved employing gold(I) catalysts bearing alkoxydiaminophosphine ligands, with readily available, nonelaborated ethyl ... -
Introducing the Catalytic Amination of Silanes via Nitrene Insertion
Rodríguez, Anabel. M; Pérez Ruíz, Jorge; Molina, Francisco; Poveda, Ana; Pérez Soto, Raúl; Maseras, Feliu; Díaz Requejo, María Mar; Pérez Romero, Pedro José (American Chemical Society, 2022-06-01)
The direct functionalization of Si−H bonds by the nitrene insertion methodology is described. A copper(I) complex bearing a trispyrazolylborate ligand catalyzes the transfer of a nitrene group from PhINTs to the Si−H bond ... -
Potential release and bioaccessibility of metal/loids from mine wastes deposited in historical abandoned sulfide mines
Ruiz Cánovas, Carlos; Quispe Guzmán, Dino Lucio; Macías Suárez, Francisco; Callejón Leblic, María Belén; Arias Borrego, Ana; García Barrera, Tamara; Nieto Liñán, José Miguel (Elsevier, 2022)
This study deals with the potential release of metal/loids from sulfide mine wastes upon weathering and the health risks associated with their accidental ingestion. To address this, a complete chemical and mineralogical ... -
Mechanistic Studies on the Synthesis of Pyrrolidines and Piperidines via Copper-Catalyzed Intramolecular C–H Amination
Muñoz Molina, José María; Bafaluy, Daniel; Funes Ardoiz, Ignacio; Aguirre, Adiran J. de; Maseras, Feliu; Rodríguez Belderraín, Tomás; Pérez Romero, Pedro José; Muñiz, Kilian (American Chemical Society, 2022)
We have recently developed a method for the synthesis of pyrrolidines and piperidines via intramolecular C–H amination of N-fluoride amides using [TpxCuL] complexes as precatalysts [Tpx = tris(pyrazolyl)borate ligand and ... -
Promising Chalcogenide Hybrid Copolymers for Sustainable Applications as Bio-lubricants and Metal Adsorbents
Cubero Cardoso, Juan; Cuadri Vega, Antonio Abad; González Fermoso, Fernando; Martín Alfonso, José Enrique; Urbano Baena, Juan (American Chemical Society, 2022)
Inverse vulcanization has emerged as a reaction to achieve hybrid inorganic–organic polymeric materials, which allows us to use the high amount of sulfur produced during refining crude oil as a raw material. In this study, ... -
Impact of “chemical cocktails” exposure in shaping mice gut microbiota and the role of selenium supplementation combining metallomics, metabolomics, and metataxonomics
Arias Borrego, Ana; Selma Royo, Marta; Collado, Maria Carmen; Abril, Nieves; García Barrera, Tamara (Elsevier, 2022-06-20)
Biological systems are exposed to a complex environment in which pollutants can interact through synergistic or antagonistic mechanisms, but limited information is available on the combined effects. To this end, ... -
Impact of heavy metals in the microalga Chlorella sorokiniana and assessment of its potential use in cadmium bioremediation
León Vaz, Antonio; León Bañares, Rosa María; Giráldez Díaz, Inmaculada; Vega, José María; Vigara Fernández, Javier (Elsevier, 2021-10)
The chlorophyte microalga Chlorella sorokiniana was tested for the bioremediation of heavy metals pollution. It was cultured with different concentrations of Cu2+, Cd2+, As (III) and As (V), showing a significant inhibition ... -
Metabarcoding data of prokaryotes and eukaryotes inhabiting the phosphogypsum stockpiles on the salt marshes of Huelva (SW Spain)
Gómez Villegas, Patricia; Guzmán Guerrero, José Luis; Pérez Rodríguez, Miguel; Bolívar Raya, Juan Pedro; Vigara Fernández, Javier; León Bañares, Rosa María (Elsevier, 2022-02-22)
Around 100 Mt of phosphogypsum (PG) of extreme acidity and with high concentrations of heavy metals and radionuclides have been deposited on the salt marshes of the Tinto River estuary in Huelva (SW Spain) for more than ... -
Using agro-industrial wastes for mixotrophic growth and lipids production by the green microalga Chlorella sorokiniana
León Vaz, Antonio; León Bañares, Rosa María; Díaz-Santos, Encarnación; Vigara Fernández, Javier; Raposo, Sara (2019-02-06)
There has been growing interest in the use of microalgae for the production of biofuels, but production costs continue to be too high to compete with fossil fuel prices. One of the main limitations for photobioreactor ... -
Simultaneous production of carotenoids and chemical building blocks precursors from chlorophyta microalgae
Rengel, Rocío; Díaz Blanco, Manuel Jesús; Giráldez Díaz, Inmaculada; García Domínguez, María Trinidad; Vigara Fernández, Javier; León Bañares, Rosa María (Elsevier, 2022-03-18)
Replacement of fossil fuels has to be accompanied by the incorporation of bio-based procedures for the production of fine chemicals. With this aim, the microalga Chlamydomonas reinhardtii was selected for its ability to ... -
The Bioconcentration and the Translocation of Heavy Metals in Recently Consumed Salicornia ramosissima J. Woods in Highly Contaminated Estuary Marshes and Its Food Risk
San José Jiménez, Israel; Navarro Roldán, Francisco Juan; Montero, Yina; Ramírez Acosta, Sara; Jiménez Nieva, Francisco Javier; Infante Izquierdo, María Dolores; Polo Ávila, Alejandro; Muñoz Rodríguez, Adolfo Francisco (MDPI, 2022-06)
Salicornia species are halophyte plants that are an important source for food, pharmacy, and bioenergy. They can be consumed as a leafy vegetable, but they can accumulate heavy metals that carry a health risk when knowledge ... -
Methodological Optimization of Supercritical Fluid Extraction of Valuable Bioactive Compounds from the Acidophilic Microalga Coccomyxa onubensis
Ruiz Domínguez, María del Carmen; Medina, Elena; Salinas, Francisca; Bugueño, Waldo; Fuentes Cordero, Juan Luis; Vílchez Lobato, Carlos; Garbayo Nores, Inés; Cerezal, Pedro (MDPI, 2022-06)
Microalgae grow in diverse environments and possess a great biotechnological potential as they contain useful bioactive compounds. These bioactive compounds can be obtained by selective and energy-efficient extraction ... -
Long-Term Sustainability of Marble Waste Sludge in Reducing Soil Acidity and Heavy Metal Release in a Contaminated Mine Technosol
Fernández Caliani, Juan Carlos; Giráldez Díaz, Inmaculada; Fernández Landero, Sandra; Barba Brioso, Cinta; Morales Carrillo de Albornoz, Emilio (MDPI, 2022-07)
A field‐based experiment was set up to evaluate the effectiveness of a single application of marble waste sludge (MWS) on chemical immobilization of potentially hazardous trace elements (PHE) within the soil profile of ...
