Results 21 to 30 of about 1,710 (123)

Selective Electrochemical sp3 CO Bond Hydrogenolysis: From Model Compounds to Lignin

ChemElectroChem, Volume 13, Issue 6, 17 March 2026.
Electrochemical sp3 CO bond cleavage is systematically investigated under constant‐current conditions using simple aryl ether models and extended to organosolv lignin. Controlled electron flow, regulated proton availability, and a sacrificial magnesium anode enable selective lignin depolymerization, yielding chemically distinct fractions with aromatic
Miquel Molina‐García, Antonio Doménech‐Carbó, Marta Mon, Antonio Leyva‐Pérez   +3 more
wiley   +1 more source

Umpolung Activation of Bicyclobutanes via N‐Heterocyclic Carbene Catalysis

Angewandte Chemie, Volume 137, Issue 41, October 6, 2025.
NHC‐catalyzed umpolung of bicyclo[1.1.0]butane (BCB) aldehydes enables nucleophilic cycloaddition with carbonyls and imines to form bicyclic lactones and lactams. The resulting oxa‐ and aza‐bicyclo[3.1.1]heptane products can be further transformed into valuable rigid 3D scaffolds, offering a simple and versatile approach to access new chemical space ...
Yu‐Che Chang, Renyu Guo, Thomas Fessard, Quentin Lefebvre, Christophe Salome, M. Kevin Brown   +5 more
wiley   +2 more sources

Effects of biochar on sugarcane growth and rhizosphere microecosystem under reduced nitrogen fertilization: a 5‑year field experiment study

Biochar
Previous studies have shown that reduced nitrogen application combined with biochar amendment can promote sugarcane growth and improve soil quality; however, their long-term effects on the rhizosphere microenvironment and microbial community in ...
Yixian Jia, Lei Zhang, Ziqin Pang, Lifang Mo, Huaying Fu, Zhaonian Yuan, Chaohua Hu   +6 more
doaj   +1 more source

Combination of a UPO‐Based Epoxidation With a Subsequent Ring‐Opening Reaction for the Synthesis of Amino Alcohols

ChemBioChem, Volume 27, Issue 5, 13 March 2026.
The synthesis of aromatic amino alcohols via a combination of an unspecific peroxygenase‐catalysed reaction, oxyfunctionalization, and addition of selected nucleophiles and electrophiles in a highly atom‐efficient manner was investigated. This study presents the design to aim for an atom‐efficient chemo‐enzymatic synthesis route towards aromatic amino ...
Simon Last, Niklas Dietz, Martin J. Weissenborn, Jan von Langermann   +3 more
wiley   +1 more source

1-(1,3-Benzodioxol-5-yl)butan-1-one [PDF]

Acta Crystallographica Section E Structure Reports Online, 2008
In the mol-ecule of the title compound, C(11)H(12)O(3), the dioxole ring adopts an envelope conformation. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into chains.
Wei Cheng, Ran Lv, Hong-Jun Zhu
openaire   +3 more sources

Carbonylative Suzuki–Miyaura Coupling of 1‐Iodoglycals Mediated by the N‐Heterocyclic Carbene Catalyst PEPPSI: Preparation of C‐Acyl Glycosides

European Journal of Organic Chemistry, Volume 29, Issue 7, 23 February 2026.
A multicomponent carbonylative Suzuki–Miyaura reaction was developed for the synthesis of C‐acyl glycosides. Using Pyridine‐Enhanced Precatalyst Preparation, Stabilization, and Initiation (PEPPSI‐IPr) catalysis and Mo(CO)6 as a solid CO source, the reaction enables selective carbonylation of three components in synthetically useful yields, providing a ...
Eurípedes de Aguiar, Mônica F. Z. J. Toledo, Flávia Manarin, João H. de Araujo‐Neto, Milene M. Hornink, Hélio A. Stefani   +5 more
wiley   +1 more source

Expanding the Toolbox for Hydrogen Atom Transfer Catalysis: Sulfides as Structurally Diverse Catalysts Under Photoredox Conditions

Advanced Synthesis &Catalysis, Volume 368, Issue 4, 17 February 2026.
A new class of sulfide‐based catalysts for visible‐light‐driven hydrogen‐atom transfer (HAT) are reported. Single‐electron oxidation of alkyl aryl sulfides generates radical cations as the active HAT species whose catalytic activities are boosted by installing the 2‐thiazolyl structure.
Tetsuya Sengoku, Shun Nishioka, Yu Kokoda, Yoshifumi Noguchi, Toshiyasu Inuzuka   +4 more
wiley   +1 more source

Targeting DESI2 as a Novel Therapeutic Strategy for JAK2‐Mutant Leukemias

Advanced Science, Volume 13, Issue 7, 3 February 2026.
Mass spectrometry‐based proteomics identify DESI2 as a novel component of the JAK2‐V617F complex, which associates with and stabilizes mutant JAK2 through deSUMOylation and deubiquitination, therefore promoting JAK2 mutant cell growth and MPN disease onset in vivo.
Husheng Mei, Wuqiang Wen, Wenjun Zhang, Shujing Zhang, Ting Sun, Guiming Li, Jing Zhang, Shuang Qi, Jie Zhou, Bing Li, Yunshuo Zhao, Xiaotong Chen, Bowen Li, Yiying Xue, Wang Lu, Yanli Sun, Jingyao Wang, Hengyue Shan, Shengzhe Zhang, Yushan Huang, Yisa Chen, Wenchao Wang, Qingsong Liu, Wenchao Lu, Li Tan, Yi Ding, Jianfei Fu, Jun Long, Lei Zhang, Baobing Zhao, Aibin Liang, Baishan Jiang, Jing Yang   +32 more
wiley   +1 more source

Asymmetric Catalytic Hydrogenation toward a Value‐Added Chiral Building Block: Optically Active γ‐Butyrolactone Scaffold from Renewable and Synthetic Derived Feedstocks

European Journal of Organic Chemistry, Volume 29, Issue 3, January 22, 2026.
This brief compendium summarizes the most successful asymmetric hydrogenation strategies for the preparation of chiral monocyclic γ‐lactone derivatives from keto acids and keto esters, with emphasis on their relevance for large‐scale production and high enatioselectivities. This article provides a brief compendium on the production of chiral monocyclic
Marta Feliz, Maria J. Sabater
wiley   +1 more source

Small‐Molecule Sarco/Endoplasmic Reticulum Ca2+‐ATPase Activators Reverse Methylglyoxal‐Induced Inhibition through Nonantioxidant Mechanisms

ChemMedChem, Volume 21, Issue 1, January 2026.
Endoplasmic reticulum (ER) Ca2+ dysregulation drives β‐cell dysfunction under diabetic stressors like methylglyoxal, which inhibits the sarco/endoplasmic reticulum Ca2+‐ATPase (SERCA) pump through oxidative modifications. We show that synthetic SERCA activators restore pump activity after methylglyoxal‐induced damage.
Carlos Cruz‐Cortés, Silvia Micháliková, Petronela Rezbáriková, L. Michel Espinoza‐Fonseca, Jana Viskupičová   +4 more
wiley   +1 more source