Person:
Alonso Gómez, José Miguel

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First Name
José Miguel
Last Name
Alonso Gómez
URI
https://hdl.handle.net/20.500.14352/76150
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Químicas
Department
Química Orgánica
Area
Química Orgánica
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2022 - 20233
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End date: 2023 × Start date: 2020 ×

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Now showing 1 - 3 of 3
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    Tuning magnetoconductivity in LaMnO3 NPs through cationic vacancy control
    (Nanomaterials, 2023) Hernando Grande, Antonio; Ruiz González, María Luisa; Díaz, Omar; Alonso Gómez, José Miguel; Martínez, José L.; Ayuela, Andrés; González Calbet, José María; Cortés Gil, Raquel
    The inclusion of La-Mn vacancies in LaMnO3 nanoparticles leads to a noticeable change in conductivity behavior. The sample retains its overall insulator characteristic, with a typical thermal activation mechanism at high temperatures, but it presents high magnetoconductivity below 200 K. The activation energy decreases linearly with the square of the reduced magnetization and vanishes when the sample is magnetized at saturation. Therefore, it turns out that electron hopping between Mn3+ and Mn4+ largely contributes to the conductivity below the Curie temperature. The influence of the applied magnetic field on conductivity also supports the hypothesis of hopping contribution, and the electric behavior can be explained as being due to an increase in the hopping probability via spin alignment.
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    2,3‐Diodocarbazoles by a domino iodocyclization/iodo‐translocation of (3‐iodoindolyl)butynols
    (Advance Synthesis & Catalysis, 2022) Martín‐Mejías, Irene; Petcu, Sonia; Alonso Gómez, José Miguel; Aragoncillo Abanades, Cristina; Almendros Requena, Pedro
    A controlled access to 1‐aryl 2,3‐diiodo‐carbazoles involving iodine transposition has been accomplished directly from acyclic precursors. The 2,3‐diiodo‐carbazole core was prone to further chemoselective decoration at C3−I or double difunctionalization.
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    Straightforward Synthesis of Bis[(trifluoromethyl)sulfonyl]ethylated Isocoumarins from 2-Ethynylbenzoates
    (Journal of Organic Chemistry, 2023) Petcu, Sonia; Lázaro Milla, Carlos; Rodríguez, Javier; Iriepa, Isabel; Bautista-Aguilera, Óscar ; Aragoncillo Abanades, Cristina; Alonso Gómez, José Miguel; Almendros Requena, Pedro
    Herein, we report a facile isocoumarin and isoquinolone preparation by taking advantage of an initial bis(triflyl)ethylation [triflyl = (trifluoromethyl)sulfonyl] reaction, followed by heterocyclization, which contrasts with our previous results on cyclobutene formation. The efficiency of the catalyst- and irradiation-free heterocyclization/bis(triflyl)ethylation sequence showed exquisite dependence on the electronic nature of the substituents at the 2-ethynylbenzoate(benzamide) precursors. Molecular docking of model bis(triflyl)ethylated isocoumarins on human acetylcholinesterase (hAChE) revealed promising biological activities through selective coordination on both the catalytic active site and peripheral active site.