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Turbulencias sobre la primacía del Derecho de la UE: últimos desafíos, respuestas y aportaciones
(Marcial Pons, 2021-11-10)
Recientemente se han producido una serie de resoluciones de diversos tribunales constitucionales que vienen a desafiar abiertamente el principio de primacía del Derecho de la Unión, haciendo valer para ello diversos límites ...
Tutela judicial efectiva y Estado de Derecho en la UE y su incidencia en la Administración de Justicia de los Estados miembros
(UNED, 2020-12-16)
El reconocimiento de la tutela judicial efectiva que realiza el Derecho de la Unión Europea incide sobre la regulación nacional de la Administración de Justicia. No cabe duda de que la competencia para regular y actuar en ...
Dependence of Magnetic Properties of As-Prepared Nanocrystalline Ni2MnGa Glass-Coated Microwires on the Geometrical Aspect Ratio
(MDPI, 2024-06-06)
We have prepared NiMnGa glass-coated microwires with different geometrical aspect ratios, ρ = dmetal/Dtotal (dmetal—diameter of metallic nucleus, and Dtotal—total diameter). The structure and magnetic properties are ...
Rigidified Bis(sulfonyl)ethylenes as Effective Michael Acceptors for Asymmetric Catalysis: Application to the Enantioselective Synthesis of Quaternary Hydantoins
(ACS, 2023-01-11)
The catalytic, enantio- and diastereoselective addition of
hydantoin surrogates II to “rigidified” vinylidene bis(sulfone) reagents is
developed, thus overcoming the inability of commonly employed β-
substituted vinylic ...
Brønsted Base-Catalyzed Enantioselective α-Functionalization of Carbonyl Compounds Involving π-Extended Enolates
(Wiley, 2023-11)
Chiral Brønsted base (BB) catalyzed asymmetric transformations constitute an important tool for synthesis. A meaningful fraction of these transformations proceeds through transiently generated enolate intermediates, which ...
Catalytic Asymmetric α-Functionalization of α-Branched Aldehydes
(MDPI, 2023-03-16)
Aldehydes constitute a main class of organic compounds widely applied in synthesis. As such, catalyst-controlled enantioselective α-functionalization of aldehydes has attracted great interest over the years. In this context, ...
Reducing Negative Aging Stereotypes via Educational Intervention in Older People: A Randomized Controlled Study
(Sage, 2022-09-13)
Anti-ageism interventions traditionally target younger individuals. We analyzed the effect of an educational intervention that combined an infusion of aging content with videos to reduce negative stereotypes toward aging ...
Organocatalytic Michael Addition of Unactivated α-Branched Nitroalkanes to Afford Optically Active Tertiary Nitrocompounds
(ACS, 2023-11-27)
The direct, asymmetric conjugate addition of unactivated α-branched nitroalkanes is developed based on the combined use of chiral amine/ureidoaminal bifunctional catalysts and a tunable acrylate template to provide tertiary ...
Synthesis of 4,6-Difluoro-Tryptophan as a Probe for Protein 19F NMR
(Wiley-VCH GmbH, Weinheim, 2024-03-25)
A scalable procedure for the synthesis of 4,6-difluorotryptophan is reported based on a deaminative
coupling of a 4,6-difluorogramine with 2-benzylthio-1,5-dihydro-4H-imidazolone as glycine equivalent. Thus prepared ...
Development of an α’-hydroxy enone for the aminocatalytic asymmetric formal conjugate addition of aldehydes to acrylates, vinyl ketones and acrolein
(Royal Society of Chemistry, 2023-05-24)
Aminocatalytic asymmetric conjugate addition of aldehydes to Michael acceptors is a well established C–C bond forming methodology. However, various acrylic-type acceptors, including acrylic acid derivatives and acrolein, ...