Results 71 to 80 of about 12,240 (259)
Nanodiamond Quantum Sensors for Probing Free Radical Biology
Advanced Functional Materials, Volume 36, Issue 45, 5 June 2026.Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley +1 more source
Dialkylzinc-Assisted Alkynylation of Nitrones
, 2016 Reaction of nitrones with terminal alkynes takes place readily in the presence of a substoichiometric amount of diethylzinc in toluene, affording N-propargyl-hydroxylamines in excellent yields and ...
Yannick Vallee (3065268) +4 more
core +1 more source
One-Pot Synthesis of Functionalized Nitrones from Nitro Compounds
, 2001 International audienceZinc-mediated reduction of nitroalkanes and nitroarenes in the presence of aldehydes is an efficient method to synthesize a wide range of nitrones. This method is mild enough to accommodate a variety of functional groups.
Pandya, Shashi +5 more
core +1 more source
Reactions1,3-Dipolar cycloadditions on nitrone dipoles are key reactions to access five-membered heterocycles, which are useful intermediates in the synthesis of biologically relevant glycomimetics.
Debora Pratesi +4 more
doaj +1 more source
Catalytic Migratory Oxidative Coupling of Nitrones
, 2016 A Cu(I)-catalyzed migratory oxidative coupling between nitrones and heterocycles or a methylamine is described. Selective C–C bond-formation proceeds through cleavage of two C(sp3)–H bonds concomitant with CN double bond-migration. The reaction provides
Shogo Hashizume (2175714) +2 more
core +1 more source
, 2016 N-Vinyl nitrones derived from fluorenone have been prepared via a copper-mediated coupling between fluorenone oxime and vinyl boronic acids. These compounds undergo subsequent rearrangement and addition reactions that are distinct from the traditional [3
Dong-Liang Mo (1490182) +2 more
core +2 more sources
ChemistryEurope, Volume 4, Issue 6, June 2026.Polycyclic intermediates enable stereocontrolled synthesis of densely functionalized cis‐1,3‐diamine and amino alcohol carbocycles and heterocycles via structural‐to‐functional complexity transformations from low‐complexity starting material. Cis‐1,3‐functionalized carbocycles and saturated heterocycles are ubiquitous motifs in natural products ...
Jiayi Zhu +2 more
wiley +1 more source
Enantioselective Metallophosphite-Catalyzed C-Acylation of Nitrones
, 2016 Metallophosphites derived from tartaric acid catalyze the enantioselective addition of acyl silanes to nitrones. The product α-N-silyloxyamino ketones are obtained in moderate to good yields (36−94%) with excellent enantioselectivity (er ≥ 95:5).
Mary R. Garrett (2470603) +2 more
core +2 more sources
Journal of Organic Chemistry, 2017 A copper-catalyzed selective cross-coupling reaction of 3-(hydroxyimino)indolin-2-ones with alkenyl boronic acids to access (E)-N-vinyl oxindole nitrones has been achieved under mild conditions.
Chunhua Chen +7 more
semanticscholar +1 more source
On the Reaction Mechanism of Nitrate Radical and DMPO in Non‐aqueous Photocatalytic Media
Chemistry – A European Journal, Volume 32, Issue 21, 1 June 2026.This work identifies 2‐oxo‐5,5‐dimethyl‐1‐pyrroline 1‐oxyl (DMPOX), formed via the selective oxidation of 5,5‐dimethyl‐1‐pyrroline N‐oxide (DMPO) by nitrate radicals (NO3•) in nonaqueous media, as a distinctive EPR fingerprint of NO3•. The DFT‐supported mechanism clarifies its formation pathway and highlights DMPOX detection as a robust tool for ...
Alessandro Gottuso +4 more
wiley +1 more source