Results 141 to 150 of about 42,802 (288)

Memory of Chirality in Radical Addition–Translocation–Cyclization Cascades

Helvetica Chimica Acta, EarlyView.
Radical addition–translocation–cyclization cascades of chiral alkynes show striking memory of chirality (MoC), with strong retention of configuration when fast, polarity favored cyclization are involved. The most effective system employs a highly electron‐poor pentafluorobenzenesulfonyl group.
Christian Simon Gloor, Fabrice Dénès, Valentin Soulard, Philippe Renaud   +3 more
wiley   +1 more source

Photooxidation of 18‐Carbon Polyunsaturated Fatty Acids to Prepare Mono‐Hydroxylated Octadecanoids

Lipids, EarlyView.
We developed a fast and simple one‐step synthetic strategy to produce mono‐hydroxylated metabolites based on the photosensitized oxidation of 18‐carbon polyunsaturated fatty acids (PUFAs). This approach could likely be extended to other PUFAs, suggesting that photosensitized oxidation could be employed to rapidly prepare hydroperoxides from multiple ...
Johanna Revol‐Cavalier, Mats Hamberg, Craig E. Wheelock   +2 more
wiley   +1 more source

Integrated Reaction Monitoring and In Situ Structural Elucidation of Reactive Intermediates With Time‐Resolved NOAH NMR Supersequences

Magnetic Resonance in Chemistry, EarlyView.
TR‐NOAH‐NUS enables real‐time reaction monitoring and direct structural characterization of transient intermediates. Integration of NOAH supersequences with t0‐filling minimizes reaction monitoring deadtime and provides high temporal resolution for kinetic analysis.
Sara M. Guzman, Yael Ben‐Tal, Jiayu Zhang, Mark Dixon, Jason E. Hein   +4 more
wiley   +1 more source

The continuing significance of chiral agrochemicals

Pest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Chiral‐Induced Spin‐Polarized Molecular Switching in a Magneto‐Controlled 2D System using Electrical Readouts

Small, EarlyView.
Through molecular engineering, an unconventional chiral 2D platform based on covalently functionalized 2D germanane achieved magneto‐controlled spin‐dependent electron transport, which can be further tuned through the enantiomeric configuration of the chiral ligand.
Yiming Lei, Ángel Campos‐Lendínez, Irena Spasojevic, Xavier Sala, Jordi García‐Antón, Jordi Sort, Jose Muñoz   +6 more
wiley   +1 more source

Catalytic Enantioselective Syntheses of Sulfinamidines From Sulfenamides

ChemistryEurope
Sulfinamidines are sulfur(IV) functional groups with significant medicinal potential and serve as versatile intermediates toward sulfur(VI) motifs, which are also of heightened pharmaceutical interest.
Fumito Saito
doaj   +1 more source

Atropisomeric [(diphosphine)Au2Cl2] complexes and their catalytic activity towards asymmetric cycloisomerisation of 1,6-enynes [PDF]

, 2014
Barreiro, EM, Boltukhina, EV, Hii, K, White, AJP   +3 more
core   +2 more sources

Advances in the Different Synthetic Routes of Fluorinated Hydrazines

The Chemical Record, EarlyView.
This review highlights the various routes to the preparation of fluorinated hydrazines, thereby promoting the exploration of innovative methods for the synthesis of new N‐fluorinated hydrazines. Their synthesis mainly involves synthetic routes such as organometallic, organocatalytic, and photocatalytic.
Dimitra Kyrko, Benoît Crousse
wiley   +1 more source

Three‐Component Radical Cross‐Coupling: Asymmetric Vicinal Sulfonyl‐Esterification of Alkenes Involving Sulfur Dioxide

Advanced Science
A novel catalytic system for radical cross‐coupling reactions based on copper and chiral Pyridyl‐bis(imidazole) (PyBim) ligands is described. It overcomes the challenges of chemoselectivity and enantioselectivity, achieving a highly enantioselective ...
Zhiqian Chang, Xuemei Zhang, Haiping Lv, Haotian Sun, Zhong Lian   +4 more
doaj   +1 more source

Crystal structure of the plant GABA aminotransferase AtGABA‐T from Arabidopsis thaliana

Acta Crystallographica Section F, EarlyView.
The crystal structure of A. thaliana γ‐aminobutyric acid aminotransferase (GABA‐T) reveals that plant GABA‐T belongs to the class III aminotransferase family and employs a C‐terminal arginine residue for γ‐aminobutyric acid recognition, in contrast to the N‐terminal arginine used by class II enzymes.γ‐Aminobutyric acid aminotransferase (GABA‐T) is a ...
Naofumi Okoda, Suguru Okuda, Kenta Tsutsumi, Hideaki Itoh, Ken Okamoto, Hiroshi Kawakami, Kaori Sano, Kenji Kobata, Koji Nagata   +8 more
wiley   +1 more source