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Listar por autor "Pérez Ruiz, Raúl"

Mostrando ítems 1-20 de 38

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A Bifunctional Photoaminocatalyst for the Alkylation of Aldehydes: Design, Analysis, and Mechanistic Studies

Rigotti, Thomas; Casado Sánchez, Antonio; Cabrera, Silvia; Pérez-Ruiz, Raúl; Líras, Marta; De la Peña-O'Shea, Víctor; Alemán, José (American Chemical Society, 2018-07)

[EN] A bifunctional photoaminocatalyst based on imidazolidinone and thioxanthone is presented. The preparation of these catalysts proceeds in a two-step synthesis that allows an easy tuning of the steric properties. The ...
A new green-to-blue upconversion system with efficient photoredox catalytic properties

Pérez-Ruiz, Raúl; Castellanos-Soriano, Jorge; Johannes Gutenberg University Mainz; Herrera-Luna, Jorge Carlos; Jiménez Molero, María Consuelo; C. Kerzig (The Royal Society of Chemistry, 2023-05-03)

[EN] The design and development of new triplet-triplet annihilation upconversion (TTA-UC) systems combining triplet sensitizers with acceptor compounds have attracted considerable interest. In this vein, sensitizers made ...
A New Pathway for Protein Haptenation by beta-Lactams

Pérez-Ruiz, Raúl; Lence, Emilio; Andreu Ros, María Inmaculada; Limones Herrero, Daniel; González-Bello, Concepción; Miranda Alonso, Miguel Ángel; Jiménez Molero, María Consuelo (John Wiley & Sons, 2017-10-09)

[EN] The covalent binding of beta-lactams to proteins upon photochemical activation has been demonstrated by using an integrated approach that combines photochemical, proteomic and computational studies, selecting human ...
Accessible Low-Cost Laser Pointers for the Reduction of Aryl Halides via Triplet-Triplet Annihilation Upconversion in Aerated Gels

Domínguez Domínguez, Paola; Bonardd, Sebastian; Martín Koury, Samuel; Pérez-Ruiz, Raúl; Jiménez Molero, María Consuelo; Díaz Díaz, David (MDPI, 2022-12)

[EN] The search for economic alternatives in the use of expensive scientific equipment represents a way of providing many laboratories access to scientific developments that, otherwise, might be hampered by economic ...
Aerobic Visible-Light-Driven Borylation of Heteroarenes in a Gel Nanoreactor

Herrera-Luna, Jorge Carlos; Díaz Díaz, David; Abramov, Alex; Encinas Perea, Susana; Jiménez Molero, María Consuelo; Pérez-Ruiz, Raúl (American Chemical Society, 2021-03-19)

[EN] Heteroarene boronate esters constitute valuable intermediates in modern organic synthesis. As building blocks, they can be further applied to the synthesis of new materials, since they can be easily transformed into ...
Bypassing the energy barrier of homolytic photodehalogenation in chloroaromatics through self-quenching

Limones Herrero, Daniel; Pérez Ruiz, Raul; Jiménez Molero, María Consuelo; Miranda Alonso, Miguel Ángel (American Chemical Society, 2013)

Reductive photodehalogenation of chloroaromatics is assumed to proceed from the triplet excited state, although its energy is often insufficient to promote a clean homolytic C¿Cl cleavage. A clear-cut experimental proof ...
Catálisis redox mediante conversión fotónica a alta frecuencia

Castellanos Soriano, Jorge (Universitat Politècnica de València, 2024-03-25)

[ES] La conversión fotónica a alta frecuencia basada en la aniquilación triplete-triplete (CA-ATT) es considerada una de las tecnologías más atractivas para convertir radiación de longitud de onda de menor energía en otra ...
Combined Photoredox and Iron Catalysis for the Cyclotrimerization of Alkynes

Neumeier, Michael; Chakraborty, Uttam; Schaarschmidt, Dieter; de la Pena O'Shea, Victor; Pérez-Ruiz, Raúl; Jacobi von Wangelin, Axel (John Wiley & Sons, 2020-08-03)

[EN] Successful combinations of visible-light photocatalysis with metal catalysis have recently enabled the development of hitherto unknown chemical reactions. Dual mechanisms from merging metal-free photocatalysts and ...
Cycloreversion of beta-lactams via photoinduced electron transfer

Pérez Ruiz, Raul; Sáez Cases, José Antonio; Jiménez Molero, María Consuelo; Miranda Alonso, Miguel Ángel (Royal Society of Chemistry, 2014-11-14)

The radical anions of beta-lactams, photogenerated in the presence of DABCO as an electron donor, undergo cycloreversion via N-C4 bond cleavage, back electron transfer and final C2-C3 bond cleavage, leading to olefins. The ...
Effective Formation of New C(sp2)-S Bonds via Photoactivation of Alkylamine-based Electron Donor-Acceptor Complexes

Herrera-Luna, Jorge Carlos; Pérez-Aguilar, María Carmen; Gerken, Leon; Garcia Mancheño, Olga; Jiménez Molero, María Consuelo; Pérez-Ruiz, Raúl (John Wiley & Sons, 2023-01-27)

[EN] A novel visible light promoted formation of CAryl-S bonds through electron donor-acceptor (EDA) complexes of alkylamines with 5- and 6-membered (hetero)arene halides is presented. This represents the first EDA-based ...
Enhancing the Photocatalytic Activity via Direct CovalentFunctionalization in Single-Walled Carbon Nanotubes

Nova-Fernandez, José Luis; González-Muñoz, Daniel; Pascual-Coca, Gustavo; Cattelan, Mattia; Stefano Agnoli; Pérez-Ruiz, Raúl; Alemán, José; Cabrera, Silvia; Blanco, Matías (John Wiley & Sons, 2024-04)

[EN] Herein, the direct covalent functionalization of single-walled carbon nanotubes (SWNT) is presented with an amino-decorated phenyl-phenothiazine (PTH-NH2) organophotocatalyst through the diazonium chemistry protocol. ...
Estudio de la actividad fotocatalítica de colorantes de nueva generación

Hernandis Altur, Vicente (Universitat Politècnica de València, 2021-09-02)

[ES] Actualmente, la fotocatálisis empleando luz visible cómo fuente de energía está considerada como una de las áreas de investigación más punteras dentro de la síntesis orgánica. Por tanto, el objetivo principal de este ...
Estudio fotofísico y fotoquímico del 4-Trifluorometil-1-Naftol

Molins Molina, Óscar (Universitat Politècnica de València, 2015-07-17)
Experimental and Theoretical Studies on the Radical-Cation-Mediated Imino-Diels_Alder Reaction

Pérez Ruiz, Raul; Domingo, Luis R; Jiménez Molero, María Consuelo; Miranda Alonso, Miguel Ángel (American Chemical Society, 2011)

[EN] The feasibility of an electron transfer imino-Diels Alder reaction betweenN-benzylideneaniline and arylalkenes in the presence of a pyrylium salt as a photosensitizer has been demonstrated by a combination of product ...
Fluorescent-Labeled Octasilsesquioxane Nanohybrids as Potential Materials for Latent Fingerprinting Detection

Dare, Enock O.; Vendrell-Criado, Victoria; Jiménez Molero, María Consuelo; Pérez-Ruiz, Raúl; Díaz Díaz, David (John Wiley & Sons, 2020-10-15)

[EN] The recent demand for fluorescent-labeled materials (FLMs) in forensic security concepts such as latent fingerprints (LFs) that encode information for anti-counterfeiting and encryption of confidential data makes ...
Fluoride Anion Recognition by a Multifunctional Urea Derivative: An Experimental and Theoretical Study

Schiller, Jana; Pérez-Ruiz, Raúl; Sampedro, Diego; Marqués-López, Eugenia; Herrera, Raquel P.; Díaz Díaz, David (MDPI AG, 2016-05)

[EN] In this work we demonstrate the ability of a multifaceted N,N '-disubstituted urea to selectively recognize fluoride anion (F-) among other halides. This additional function is now added to its already reported ...
Hetero-cycloreversions Mediated by Photoinduced Electron Transfer

Pérez Ruiz, Raul; Jiménez Molero, María Consuelo; Miranda Alonso, Miguel Ángel (American Chemical Society, 2014-04)

[EN] Discovered more than eight decades ago, the Diels-Alder (DA) cycloaddition (CA) remains one of the most versatile tools in synthetic organic chemistry. Hetero-DA processes are powerful methods for the synthesis of ...
Highly efficient latent fingerprint detection by eight-dansyl-functionalized octasilsesquioxane nanohybrids

Dare, Enock O.; Vendrell-Criado, Victoria; Jiménez Molero, María Consuelo; Pérez-Ruiz, Raúl; Díaz Díaz, David (Elsevier, 2021-01)

[EN] The largely demand in continued security issues makes necessary the development of novel materials with outstanding properties to improve the current detection techniques. In this context, latent fingerprint (LF) by ...
Highly Efficient Production of Heteroarene Phosphonates by Dichromatic Photoredox Catalysis

Herrera-Luna, Jorge Carlos; Díaz Díaz, David; Jiménez Molero, María Consuelo; Pérez-Ruiz, Raúl (American Chemical Society, 2021-10-07)

[EN] A new strategy to achieve efficient aerobic phosphorylation of five-membered heteraroenes with excellent yields using dichromatic photoredox catalysis in a gel-based nanoreactor is described here. The procedure involves ...
Mapping a protein recognition centre with chiral photoactive ligands. An integrated approach combining photophysics, reactivity, proteomics and molecular dynamics simulation studies

Limones-Herrero, Daniel; Pérez Ruiz, Raul; Lence, Emilio; Gonzalez-Bello, Concepcion; Miranda Alonso, Miguel Ángel; Jiménez Molero, María Consuelo (The Royal Society of Chemistry, 2017-04-01)

[EN] A multidisciplinary strategy to obtain structural information on the intraprotein region is described here. As probe ligands, (S)- and (R)-CPFMe (the methyl esters of the chiral drug carprofen) have been selected, ...