Results 31 to 40 of about 12,240 (259)
Journal of Chemistry, 2015 This paper describes the synthesis of a series of dihydroisoquinoline nitrones by isomerization of the corresponding oxaziridines. Nitrones 4a–c were obtained in excellent yields and high purity by a simple and effective method from the isomerization of ...
Mouna Bouzid +3 more
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Enantioselective Zn-catalyzed hydrophosphinylation of nitrones: an efficient approach for constructing chiral α-hydroxyamino-phosphine oxides. [PDF]
Chem SciAlthough enantioselective hydrofunctionalizations of nitrones are established for the synthesis of various types of chiral hydroxylamines, the asymmetric catalytic hydrophosphinylation of nitrones remains highly challenging.
Luo S +5 more
europepmc +2 more sources
, 2020 The enantio- and chemoselective iridium-catalyzed N- and O-allylation of oximes is described for the first time. Kinetic resolution in an intramolecular setting provides access to cyclic nitrones, oxime ethers and enantioenriched aliphatic allylic ...
Tobias, Sandmeier, Erick, Carreira
core +1 more source
Molecules, 1998 Enantiomerically pure, five membered cyclic nitrones, easily obtained in large amounts from protected hydroxyacids and aminoacids such as D- and L-tartaric, L-malic, and L-aspartic acids, give cycloaddition reactions with a good diastereocontrol.
Alberto Brandi +4 more
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Acta Crystallographica Section E: Crystallographic Communications, 2021 The conformation of the title compound, C13H11NO2, is partially determined by a strong, intramolecular O—H...O hydrogen bond. The crystal packing consists of strongly corrugated layers parallel to the ac plane and associated through C—H...π(ring ...
Shaaban K. Mohamed +5 more
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Molecules, 2022 GM1 gangliosidosis is a rare lysosomal disease caused by the deficiency of the enzyme β-galactosidase (β-Gal; GLB1; E.C. 3.2.1.23), responsible for the hydrolysis of terminal β-galactosyl residues from GM1 ganglioside, glycoproteins, and ...
Francesca Clemente +8 more
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Nitrones in synthetic polymer chemistry
, 2011 Nitrones are arguably one of the most efficient compounds with multi-functional capabilities, acting as both radical spin traps and 1,3-dipoles. In contrast to their potential synthetic versatility, the application of nitrones in synthetic polymer ...
Wong, E. H. H. +8 more
core +1 more source
SynOpen, 2018 Reaction of enantiopure 3,4-dialkoxy-pyrroline N-oxides with benzyne affords the expected tetrahydrobenzo[d]pyrrolo[1,2-b]isoxazoles along with an unexpected 2,3-disubstitued-N-phenyl-pyrrole derived from an unprecedented rearrangement of the adduct of ...
Franca M. Cordero +3 more
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European journal of medicinal chemistry, 2019 The discovery of new chemical entities endowed with potent and selective acetylcholinesterase (AChE) and/or butyrylcholinesterase (BChE) inhibitory activity is still a relevant subject for Alzheimer's disease therapy.
Catarina Oliveira +12 more
semanticscholar +1 more source
Crystal structure of (2R*,3aR*)-2-phenylsulfonyl-2,3,3a,4,5,6-hexahydropyrrolo[1,2-b]isoxazole
Acta Crystallographica Section E: Crystallographic Communications, 2017 The title compound, C12H15NO3S, was prepared by 1,3-dipolar cycloaddition of 3,4-dihydro-2H-pyrrole 1-oxide and phenyl vinyl sulfone. In the molecule, both fused five-membered rings display a twisted conformation.
Yaiza Hernández +4 more
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