Results 1 to 10 of about 4,555 (166)

Synthesis and Biological Activity Study of Co and Cr Complexes with α-(2-Salsayl)-N-phenyl Nitrone and Oxide Nanoparticles

open access: yesIndonesian Journal of Chemistry, 2023
This paper describes the synthesis of two complexes from the ligand α-(2-Salsayl)-N-phenyl nitrone with CoCl2 and CrCl2. The ligand was characterized by several spectroscopic techniques (ultraviolet/visible (UV/Vis), nuclear magnetic resonance (1H-NMR ...
Dhamiaa Abdul-Shaheed Issa   +2 more
doaj   +1 more source

5,5,7,7-Tetrametyl-6,7-dihydro-5H-dibenzo[c,e]azepine

open access: yesMolbank, 2023
5,5,7,7-Tetrametyl-6,7-dihydro-5H-dibenzo[c,e]azepine has been synthesized as a possible pro-chiral (or tropos) unit for the construction of a chiral catalyst and as a molecular chirality sensor for the absolute configuration assignment by chiroptical ...
Roberto Bisaccia   +3 more
doaj   +1 more source

Crystal structure and Hirshfeld surface analysis of N-[(Z)-(2-hydroxyphenyl)methylidene]aniline N-oxide

open access: yesActa 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
doaj   +1 more source

2-Butyl-2-tert-butyl-5,5-diethylpyrrolidine-1-oxyls: Synthesis and Properties

open access: yesMolecules, 2020
Nitroxides are broadly used as molecular probes and labels in biophysics, structural biology, and biomedical research. Resistance of a nitroxide group bearing an unpaired electron to chemical reduction with low-molecular-weight antioxidants and enzymatic
Irina F. Zhurko   +8 more
doaj   +1 more source

Kinugasa Reactions in Water: From Green Chemistry to Bioorthogonal Labelling

open access: yesMolecules, 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

Synthesis of Sterically Shielded Nitroxides Using the Reaction of Nitrones with Alkynylmagnesium Bromides

open access: yesMolecules, 2022
Sterically shielded nitroxides, which demonstrate high resistance to bioreduction, are the spin labels of choice for structural studies inside living cells using pulsed EPR and functional MRI and EPRI in vivo.
Sergey A. Dobrynin   +8 more
doaj   +1 more source

A mechanistic investigation of the oxidation of N,α-diphenylnitrones by dichloramine-T in aqueous acetonitrile medium - a non-linear Hammett plot [PDF]

open access: yesJournal of the Serbian Chemical Society, 2009
The kinetics of oxidation of a number of meta- and para-substituted N,α-diphenylnitrones (nitrone) by dichloramine-T (DCT) was investigated in the presence of alkali in aqueous acetonitrile medium.
Manivarman S.   +5 more
doaj   +1 more source

(Z)-1-(1,3-Diphenyl-1H-pyrazol-4-yl)-N-phenylmethanimine N-oxide

open access: yesIUCrData, 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

Characterization of a CholesteroNitrone (ISQ-201), a Novel Drug Candidate for the Treatment of Ischemic Stroke

open access: yesAntioxidants, 2020
Nitrones have a well-recognized capacity as spin-traps and are considered powerful free radical scavengers, which are two important issues in hypoxia-induced oxidative stress and cell death in brain ischemia.
Emma Martínez-Alonso   +9 more
doaj   +1 more source

STUDY OF CYCLOREVERSION OF NTTRONE-CY CLODIMERS [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1993
A series of 1,3-dipolar cycloaddition reactions are carried out using cyclodimers of simple nitrones and various dipolarophiles; substituted isoxazolidines are isolated and identified.
doaj  

Home - About - Disclaimer - Privacy