Results 201 to 210 of about 104,664 (293)

Gold‐Catalyzed Cyclization of Indole‐Tethered Alkynes Enabling Synthesis of Exocyclic Alkenyl Tetrahydrocarbazoles

European Journal of Organic Chemistry, EarlyView.
An efficient gold‐catalyzed intramolecular cyclization of indole‐tethered alkynes using AgNTf2 as an additive has been developed, which provides bioactive exocyclic alkenyl tetrahydrocarbazoles with up to 85% yield. Control experiments and DFT studies indicate that the reaction proceeds via a 6‐exo‐dig cyclization pathway, with gold acetylide complexes
Haibo Mei, Jingrui He, Chengting Wang, Jorge Escorihuela, Jianlin Han   +4 more
wiley   +1 more source

A generalizable method for the purification and biophysical characterization of bacterial membrane receptors. [PDF]

Protein Sci
Bosetto F, Zacharopoulou M, Bycroft M, Kish M, Zinzalla G, Rowling PJE, McLaughlin SH, Phillips JJ, Itzhaki LS, Mela I.   +9 more
europepmc   +1 more source

Protic N‐Heterocyclic Carbene Ligands in Ruthenium‐Catalyzed Transfer Hydrogenation

Helvetica Chimica Acta, EarlyView.
The activity of ruthenium transfer hydrogenation catalysts is strongly influenced by the number of protic units in the N‐heterocyclic carbene ligand. Doubly protic NH, NH ligands induce slower activity than mono‐protic NH, NMe ligands, while NMe, NMe ligands display the highest activity, suggesting metal‐ligand cooperativity is not beneficial for these
Gianluca Righetti, Georgyi Koidan, Sergiy L. Filimonchuk, Svitlana Shishkina, Aleksandr Kostyuk, Martin Albrecht   +5 more
wiley   +1 more source

Water-Dispersible Ruthenium Nanocatalyst for Carbonyl Reduction With D₂ or T₂ in Aqueous Media. [PDF]

Angew Chem Int Ed Engl
Martinelli E, Jiménez Rioboo R, Weck R, Feuillastre S, Martínez-Prieto LM, Pieters G, Derdau V.   +6 more
europepmc   +1 more source

Metabolomic insights for the authentication and traceability of antibiotic‐free pork: a pilot study

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Antibiotic‐free production within the meat supply chain is a source of concern since new voluntary label claims need to be authenticated to prevent fraud. Therefore, an untargeted 1H NMR‐based metabolomics approach coupled to unsupervised (principal component analysis) and supervised (orthogonal partial least squares discriminant ...
Maria Olga Varrà, Maria Pia Fabrile, Sergio Ghidini, Augusta Caligiani, Federico Scali, Veronica Lolli, Giovanni Loris Alborali, Adriana Ianieri, Emanuela Zanardi   +8 more
wiley   +1 more source

Correction: Detection of regional metabolic alteration using 7T deuterium metabolic imaging in MRI-negative, ¹⁸FDG-PET-positive epilepsy patients. [PDF]

MAGMA
Ahmadian N, Buijs R, Gosselink M, Otto I, Tesselaar K, Prompers JJ, van Eijsden P, van Klink N, Klomp DW, Wiegers EC.   +9 more
europepmc   +1 more source

Predicting grapevine stem water potential (Ψstem) using UV‐visible‐NIR spectroscopy across contrasting vineyard environments

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Climate change is intensifying water scarcity in viticulture, increasing the need for rapid and reliable tools to monitor vine water status. Spectroscopic techniques have emerged as promising approaches for rapid assessment of plant water status, although their robustness across different environments remains a key challenge.
Martina Galaverni, José Ignacio Manzano, Marta Rodríguez‐Febereiro, María Fandiño, Mar Vilanova, Javier José Cancela   +5 more
wiley   +1 more source

Conformational signatures of native ligand and pharmacochaperone binding in rhodopsin. [PDF]

Structure
Pashandi Z, Ortega JT, Miyagi M, Golczak M, Jastrzebska B.   +4 more
europepmc   +1 more source

Analysis of Carbohydrates and Glycoconjugates by Matrix‐Assisted Laser Desorption/Ionization Mass Spectrometry: An Update for 2023–2024

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The use of MALDI mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this comprehensive review is the twelfth update of the original article published in 1999 and brings coverage of the literature to the end of 2024.
David J. Harvey
wiley   +1 more source

Site-Specific Hydrogen-Deuterium Exchange Mass Spectrometry for Deep Explorations of Dynamic Shifts in Protein-Drug Interactions. [PDF]

J Am Chem Soc
Anacleto J, Wolf E, Ackloo S, Arrowsmith C, LeBlanc Y, Lento C, Wilson DJ.   +6 more
europepmc   +1 more source