Results 81 to 90 of about 12,240 (259)
Beilstein Journal of Organic Chemistry, 2010 A stereodivergent synthesis of enantiopure 3,6-dihydro-2H-pyrans is presented. The addition of lithiated enol ethers to carbohydrate-derived nitrones afforded syn- or anti-configured hydroxylamine derivatives 4a–d that were cyclized under Lewis acidic ...
Fabian Pfrengle, Hans-Ulrich Reissig
doaj +1 more source
Kinugasa Reactions in Water: From Green Chemistry to Bioorthogonal Labelling
Molecules, 2015 The Kinugasa reaction has become an efficient method for the direct synthesis of β-lactams from substituted nitrones and copper(I) acetylides. In recent years, the reaction scope has been expanded to include the use of water as the solvent, and with ...
Mariya Chigrinova +4 more
doaj +1 more source
, 2014 Citation: 'nitrones' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.N04164 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire +1 more source
Archiv der Pharmazie, 2018 Novel quinoline derivatives carrying nitrones and oxime as nitric oxide donors were prepared and characterized using different spectroscopic techniques.
Mahmoud S. Abdelbaset +5 more
semanticscholar +1 more source
Push–Pull Ynamines and Push–Pull Ynamides: Synthesis, Structure, Reactivity, and Application
European Journal of Organic Chemistry, Volume 29, Issue 19, 22 May 2026.Push–pull ynamines and push–pull ynamides, which carry an EWG and an amino or amido group as EDG, are highly interesting classes of EDG‐EWG alkynes that have been intensively studied due to their exceptional reactivity. In this review, the synthesis, structure, reactivity, and application of push–pull ynamines, push–pull ynecarbamates, push–pull ...
Hans‐Joachim Gais
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2014 New compounds with carbohydrate-similar structure (carbohydrate mimetics) are presented in this article. Starting from enantiopure nitrones and lithiated TMSE-allene we prepared three 1,2-oxazine derivatives which underwent a highly stereoselective Lewis
Léa Bouché +2 more
doaj +1 more source
ChemSusChem, Volume 19, Issue 9, 14 May 2026.A Safe and Sustainable by Design (SSbD) mechanochemical approach was used to prepare a marketed sweetener from a biomass derivative used in flavoring industry. A personal care ingredient was also synthesized. The study also evaluated and compared the reactivity in of polymeric jars with that in of common conventional stainless steel or and zirconium ...
Rubén Solórzano‐Rodríguez +6 more
wiley +1 more source
(Z)-1-(1,3-Diphenyl-1H-pyrazol-4-yl)-N-phenylmethanimine N-oxide
IUCrData, 2018 In the title nitrone, C22H17N3O, the dihedral angles between the central pyrazole ring and pendant N-bound, C-bound and nitrone-bound phenyl rings are 20.93 (6), 41.27 (6), and 32.57 (6)°, respectively.
Shaaban K. Mohamed +5 more
doaj +1 more source
Advanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.This review highlights the evolution of highly enantioselective oxazolidinone transformations enabled by C2‐symmetric ligands, with emphasis on chiral iron triad complexes as cost‐effective, environmentally benign alternatives to late‐transition‐metal catalysts.
Arthur David, Thierry Ollevier
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2020 A method for the one-step construction of 3,3,4,4-tetrafluorinated piperidines from nitrones and readily accessible tetrafluorinated iodobromobutane is described.
Vyacheslav I. Supranovich +2 more
doaj +1 more source