Results 71 to 80 of about 18,744 (300)

Copper-mediated asymmetric transformations [PDF]

, 2017
Copper-catalyzed reactions include the enantioselective conjugate addition and the SN2¢ substitution. We describe the genesis of these reactions, the choice of the primary organometallic reagent, and our studies on finding new Michael acceptors and new ...
Alexakis, Alexandre
core  

Recyclable Ligand‐free Cobalt Catalyst for Alkoxycarbonylation of Chloroacetates

ChemSusChem, Accepted Article.
Direct carbonylation of the C(sp3)‐Cl bond remains a challenging transformation in the chemical industry. The usual use of precious metals, the high cost of ligands and the lack of recyclability of catalysts make their industrial application on a large scale impossible.
Wenyu Wang, Zhusong Cao, Yuya Hu, Rui Sang, Qingshan Kong, Qicai Xue, Baoxin Zhang   +6 more
wiley   +1 more source

Gels for CO2 geo‐storage and conformance control: A systemic review of behavior and performance

Deep Underground Science and Engineering, EarlyView.
This review provides a systemic evaluation of potential sealants used in CO2 subsurface storage practices. Critical analyses of how external factors like CO2, pH, brine salinity and hardness, rock mineralogy, pressure, temperature, and injectivity could affect the performance of different sealants are provided. Abstract Carbon capture and storage (CCS)
Funsho Afolabi, Iskandar Dzulkarnain, Sunil Kwon, Dmitriy A. Martyushev, Jang H. Lee, Shiferaw R. Jufar, Fahd Al‐Akbari   +6 more
wiley   +1 more source

Mitochondrial targets in ischaemic heart disease and heart failure, and their potential for a more efficient clinical translation. A scientific statement of the ESC Working Group on Cellular Biology of the Heart and the ESC Working Group on Myocardial Function

European Journal of Heart Failure, EarlyView.
Improving clinical translation of mitoprotective therapies. 31P MRI, phosphorus‐31 magnetic resonance imaging; hiPSC‐CM, human‐induced pluripotent stem cell‐derived cardiomyocyte; IHD, ischaemic heart disease. Abstract Acute myocardial infarction (MI) remains a major cause of death and disability worldwide.
Melanie Paillard, Mahmoud Abdellatif, Ioanna Andreadou, Christian Bär, Luc Bertrand, Bianca J.J.M. Brundel, Gemma Chiva‐Blanch, Sean M. Davidson, Dana Dawson, Fabio Di Lisa, Paul Evans, Zoltan Giricz, Derek J. Hausenloy, Petra Kleinbongard, Frank Lezoualc'h, Elisa Liehn, Christoph Maack, Ange Maguy, Elizabeth Murphy, Cinzia Perrino, Maurizio Pesce, Peter P. Rainer, Katrin Streckfuss‐Bömeke, Matthias Thielmann, Rong Tian, Carlo G. Tocchetti, Jolanda Van Der Velden, Sophie Van Linthout, Serena Zacchigna, Thomas Krieg   +29 more
wiley   +1 more source

Organocatalytic Asymmetric α-Chlorination of 1,3-Dicarbonyl Compounds Catalyzed by 2-Aminobenzimidazole Derivatives [PDF]

, 2016
Bifunctional chiral 2-aminobenzimidazole derivatives 1 and 2 catalyze the enantioselective stereodivergent α-chlorination of β-ketoesters and 1,3-diketone derivatives with up to 50% ee using N-chlorosuccinimide (NCS) or 2,3,4,4,5,6-hexachloro-2,5 ...
Alonso, Diego A., Baeza, Alejandro, Serrano Sánchez, Daniel   +2 more
core   +3 more sources

Decarboxylative Michael Additions of Substituted Malonic Acid Half‐Oxyesters to Methylidene Malonates

European Journal of Organic Chemistry, EarlyView.
Substituted malonic acid half oxyesters reacted with alkylidene malonates in a fast, efficient decarboxylative Michael addition, delivering adducts in high yields. The reaction occurred in bulk solvent, open to air, needing only a weak amine base as an organocatalyst to drive a mechanism involving addition prior to decarboxylation.
Marine Pinaud, Tania Xavier, Léa Lin, Erwan Le Gall, Marc Presset   +4 more
wiley   +1 more source

Facile and Practical Synthesis of Substituted Piperidine‐2,6‐Diones Under Transition‐Metal Free Condition

ChemistryOpen, EarlyView.
KOtBu‐promoted facile and practical synthesis of various substituted piperidine‐2,6‐diones between methyl acetates and acrylamides via a Michael addition/intramolecular imidation cascade sequence has been disclosed. And reaction scale‐up, further transformation of representative products, and preparation of bioactive molecules (e. g.
Yue‐Hua Liu, Zhang‐Qin Xue, Kai‐Wen Yang, Hao‐Wen Yin, Bo Yang, Rui Zhang, Hao Zhong, Zhu‐Shuang Bai   +7 more
wiley   +1 more source

Total Synthesis of Isodaphlongamine H by Iridium‐Catalyzed Reductive [3 + 2] Cycloaddition of N‐Hydroxylactam

Angewandte Chemie, Volume 137, Issue 29, July 14, 2025.
The total synthesis of isodaphlongamine H was accomplished by a lactam strategy. This strategy started with alkylation and N‐oxidation of a readily available chiral lactam. For the key functionalization of the amide carbonyl, an iridium‐catalyzed reductive [3 + 2] cycloaddition of the N‐hydroxylactam afforded the tricyclic isoxazolidine, which was ...
Sora Iwamoto, Reki Nakano, Keiji Sasaki, Shoichiro Kobayashi, Yuki Taira, Koya Takei, Reiji Kawakita, Ayako Tokuyama, Haruto Nakamura, Manato Tomoike, Ryota Kawahara, Akari Murase, Siro Simizu, Noritaka Chida, Toshitaka Okamura, Takaaki Sato   +15 more
wiley   +2 more sources

Sequential Dual‐Curing via Michael Addition and Free Radical Polymerization for Wood Surface Densification

Polymer Engineering &Science, EarlyView.
Densification and curing process using sequential Michael addition reaction. ABSTRACT The application of sequential dual‐curing systems involving Michael addition and free radical polymerization has shown promise for enhancing polymeric networks' thermal and mechanical properties.
Vahideh Akbari, Stéphanie Vanslambrouck, Jérémy Winninger, Véronic Landry   +3 more
wiley   +1 more source

Design and Synthesis of Polyheterocyclic Compounds Containing Pyrazolopyridopyrimidine Nucleus with Antimicrobial Activities

ChemistryOpen
This study reports the design, synthesis, and antibacterial evaluation of a library of novel polyheterocyclic derivatives featuring a unique fused pyrimidopyridopyrazole moiety.
Farag A. El‐Essawy, Mohammad Ahmad Ahmad Odah   +1 more
doaj   +1 more source