Results 141 to 150 of about 18,220 (243)

Truncation of Samroiyotmycin: Tailored seco‐Acids as Novel Antimalaria Compounds

European Journal of Organic Chemistry, EarlyView.
Six truncated samroiyotmycin‐derived antimalarials were synthesized by replacing the tosyloxazole unit with electron‐deficient aryl groups. The most active seco‐acid with EWG = 2 × CF3 outperformed the natural product SamA. Its enhanced activity supports a donor–acceptor interaction involving the electron‐poor aryl unit, consistent with inhibition of ...
Anton Czuczkowski, Anja Schäfer, Juliana A. Hüther, Bianca Wank, Robert Toews, Fotios Fotakis, Andreas Köhn, Markus Rehm, Matthias Rottmann, Anna Zens, Sabine Laschat   +10 more
wiley   +1 more source

Chemoselective Aldehyde and Imine Reduction by a Macrocyclic Triazole–Borane Complex Triggered by a Non‐innocent Proton–Hydride Interaction

European Journal of Organic Chemistry, EarlyView.
This work describes the study on a new recyclable reagent, based on a macrocyclic triazole–borane complex. It showed high chemoselectivity for aldehyde reduction and reductive amination over ketones. This selectivity is driven by a noncovalent hydride–proton interaction that stabilizes the transition state for aldehydes but is sterically inhibited in ...
Luca Di Marino, Artur Brotons Rufes, Rosaria Schettini, Giorgio Della Sala, Francesco De Riccardis, Chiara Costabile, Irene Izzo   +6 more
wiley   +1 more source

Direct Conversion of Aryl Iodides Into Benzylamines by Aminomethylation: Reaction Scope, Mechanistic Studies, and Applications

European Journal of Organic Chemistry, EarlyView.
This study presents an efficient aminomethylation of aryl iodides with formamides for the synthesis of benzylamines using a reusable palladium catalyst at a loading of 65 mol ppm. The substrate scope is systematically evaluated, and mechanistic investigations provide insight into the reaction pathway and the origin of the observed catalytic efficiency.
Abhijit Sen, Atsuya Muranaka, Yu Hatakenaka, Aya Ohno, Yoichi M. A. Yamada   +4 more
wiley   +1 more source

A Straightforward Synthesis of Benzestrol by Matteson Homologation Using Chiral Benzyl Carbamates

European Journal of Organic Chemistry, EarlyView.
Benzestrol can easily be obtained stereoselectively via Matteson reaction using chiral Boronic esters and chiral benzyl carbamates. A straightforward and highly stereoselective synthesis of the non‐steroidal estrogen benzestrol is described based on Matteson homologations.
Max Benjamin Becker, Uli Kazmaier
wiley   +1 more source

Monitoring and Mitigation Strategies for Hazardous Compounds in Chinese Rice Wine (Huangjiu): A Comprehensive Review

Food Safety and Health, EarlyView.
This review elucidates the formation pathways and detection technologies for ethyl carbamate, biogenic amines, and higher alcohols in Huangjiu. It concludes that integrated control frameworks are essential to decouple safety risks from the metabolic processes responsible for flavor development.
Lulu Liu, Zhiqiang Kong, Lin Li, Yifan Zhang, Bei Fan, Minmin Li   +5 more
wiley   +1 more source

Isostructural Analysis in Proposed Crystallization Mechanisms at the Molecular Level of Methyl 4‐bromobenzoate and Methyl 4‐iodobenzoate

Helvetica Chimica Acta, EarlyView.
Proposed molecular‐level crystallization mechanisms for halogenated aryl esters were developed based on theoretical energetic and topological data regarding intermolecular and supramolecular interactions. Energetic analysis was used to determine the hierarchy of interactions guiding supramolecular structure growth along the three axes, as well as to ...
Patrick Teixeira Campos, Isabella Burchardt Ferreira, Rubia Mara Siqueira da Silva   +2 more
wiley   +1 more source

A Reversible Clearing Strategy Enables Robust Label‐Free Phase Imaging of Thick Tissues

Laser &Photonics Reviews, EarlyView.
The principle of a reversible clearing strategy via glycerol and tartrazine solution (GTS) for robust whole‐slide label‐free phase imaging of thick tissue slices via high‐throughput Fourier ptychographic microscopy (FPM) and lensless digital holographic microscopy (LDHM). ABSTRACT Thick biological specimens impose strong scattering and attenuation that
Mikołaj Krysa, Anna Chwastowicz, Małgorzata Lenarcik, Paweł Matryba, Piotr Zdańkowski, Maciej Trusiak   +5 more
wiley   +1 more source

Flavouring Group Evaluation 54 (FGE.54) ‐ Consideration of benzyl derivatives evaluated by JECFA (57th meeting) structurally related to benzyl alcohols, benzaldehydes, a related acetal, benzoic acids and related esters evaluated by EFSA in FGE.20 (2005) ‐ Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food

EFSA Journal, 2008
European Food Safety Authority (EFSA)
doaj   +1 more source

Rapid Discovery of TiO2/ZnFe2O4/Cu Ternary Photocatalysts for Volatile Organic Compounds Degradation via High‐Throughput Screening Photogenerated Carriers Transfer Properties

Materials Genome Engineering Advances, EarlyView.
This study develops a high‐throughput screening method using carrier mobility as a key descriptor. Taking the TiO2/ZnFe2O4/Cu ternary photocatalytic system as an example, we rapidly identify high‐performance components for VOCs degradation, confirm that the performance trends of thin‐film catalysts match those of their powder counterparts with the same
Tao Liang, Yuxue Wei, Fang Chen, Zhe Yuan, Xinyu Wang, Faze Wang, Xizuo Dan, Song Sun   +7 more
wiley   +1 more source

Second‐Life Thermoset Manufacturing via Mild Solvolysis of Epoxy‐Matrix Composites and Wet‐Laid Mat Production

Polymer Composites, EarlyView.
From end‐of‐life pultruded CFRP profiles (1) to second life composites (7) through mild solvolysis (2,3), wet‐laid nonwoven mat fabrication (4), resin impregnation (5), and compression molding (6). ABSTRACT The growing use of carbon fiber–reinforced thermosets has led to the accumulation of significant composite waste, posing environmental and economic
Ehsan Zolfaghari, Fabian Rechsteiner, Violetta Schumm, Emanuela Muscolino, Sabina Alessi, Nadka Tz. Dintcheva, Clelia Dispenza   +6 more
wiley   +1 more source