Recent Advances in N-O Bond Cleavage of Oximes and Hydroxylamines to Construct N-Heterocycle [PDF]
Molecules, 2023 Oximes and hydroxylamines are a very important class of skeletons that not only widely exist in natural products and drug molecules, but also a class of synthon, which have been widely used in industrial production.
Yi-Lin Zhao +2 more
exaly +4 more sources
Recent Advances in the Synthesis of Di- and Trisubstituted Hydroxylamines [PDF]
Molecules, 2023 As an underrepresented functional group in bioorganic and medicinal chemistry, the hydroxylamine unit has historically received little attention from the synthetic community.
Jarvis Hill +2 more
exaly +4 more sources
Crown-hydroxylamines are pH-dependent chelating N,O-ligands with a potential for aerobic oxidation catalysis [PDF]
Nature Communications, 2023 Despite the rich coordination chemistry, hydroxylamines are rarely used as ligands for transition metal coordination compounds. This is partially because of the instability of these complexes that undergo decomposition, disproportionation and oxidation ...
Vladislav K. Lesnikov +4 more
doaj +3 more sources
Cyclic Hydroxylamines as Monitors of Peroxynitrite and Superoxide-Revisited [PDF]
Antioxidants, 2021 There is a considerable need for methods that allow quantitative determination in vitro and in vivo of transient oxidative species such as peroxynitrite (ONOOH/ONOO−) and superoxide (HO2•/O2•−).
Uri Samuni, Amram Samuni, Sara Goldstein
doaj +2 more sources
Competition of the Addition/Cycloaddition Schemes in the Reaction Between Fluorinated Nitrones and Arylacetylenes: Comprehensive Experimental and DFT Study [PDF]
MoleculesThe course of the reactions of acetylenes with fluorinated nitrones in the presence of Zn(OTf)2 and Et2Zn was investigated. The formation of hydroxylamines and/or 1,2-oxazolines as products was observed.
Szymon Jarzyński +4 more
doaj +2 more sources
Ceria–Zirconia-Supported Pt as an Efficient Catalyst for the Sustainable Synthesis of Hydroxylamines and Primary Amines via the Hydrogenation of Oximes Under Ambient Conditions [PDF]
MoleculesAmines and hydroxylamines are essential compounds in the synthesis of pharmaceuticals and other functionalized molecules. However, the synthesis of primary amines and particularly hydroxylamines remains a challenging task.
Elena Redina +5 more
doaj +2 more sources
On the Oxidation of Hydroxylamines with o-Iodoxybenzoic Acid (IBX) [PDF]
Synthesis, 2017 o-Iodoxybenzoic acid (IBX) is confirmed as a powerful tool for the oxidation of hydroxylamines. The synthetic route is demonstrated as efficient and user friendly, and is exploited on various carbohydrate-derived N,N-disubstituted ...
Camilla Matassini +2 more
exaly +2 more sources
O-Arylsulfonyl hydroxylamines via a decarboxylative rearrangement [PDF]
Tetrahedron, 2009 (E)-O-Arylsulfonyl-N-(2-nitroalk-2-enyl)hydroxylamines were easily obtained in good yields starting from (E)-nitro allylic alcohols, the crucial step being an inorganic base-catalyzed decarboxylative rearrangement of proposed labile unsaturated ...
Stefania Fioravanti +2 more
exaly +2 more sources
Trifluoroethanol-assisted asymmetric propargylic hydrazination to α-tertiary ethynylhydrazines enabled by sterically confined pyridinebisoxazolines [PDF]
Nature CommunicationsWe report the highly enantioselective Cu-catalyzed asymmetric propargylic substitution (APS) of α-tertiary propargylic electrophiles using hydrazines and hydroxylamines as a fruitful strategy to access multifunctional α-tertiary hydrazines or ...
Yi Gong +10 more
doaj +2 more sources
Application of a fully 3D printed carbon electrode for the double potential step Chronoamperometric determination of 2,4-dinitrophenol in environmental water samples [PDF]
Frontiers in ChemistryIntroductionThe detection of nitrophenolic compounds in environmental water sources is critical due to their toxicity and persistence. This study presents the first reported application of a fully 3D printed carbon nanofiber-graphite-polystyrene working ...
Daniel Steven Shaw +4 more
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