Results 61 to 70 of about 12,404 (251)
Cascade oxime formation, cyclization to a nitrone, and intermolecular dipolar cycloaddition. [PDF]
, 2016 Simple haloaldehydes, including enolisable aldehydes, were found to be suitable for the formation of cyclic products by cascade (domino) condensation, cyclisation, dipolar cycloaddition chemistry.
Aasen +48 more
core +1 more source
The Canadian Journal of Chemical Engineering, EarlyView.Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal +3 more
wiley +1 more source
Ferrocene-derived P,N ligands : synthesis and application in enantioselective catalysis [PDF]
, 2013 Due to their unique steric and electronic properties, air-stability and modular structure, chiral hybrid P,N-ferrocenyl ligands play a prominent role in the field of asymmetric catalysis.
Noël, Timothy, Van der Eycken, Johan
core +1 more source
Recent Advances in Bioconjugation of Aromatic Amino Acid Residues by a Reactivity‐Guided Approach
The Chemical Record, EarlyView.This review highlights recent advances in the bioconjugation of aromatic amino acids residues, focusing on strategies that leverage their inherent chemical reactivity to enable precise and versatile modifications of biomacromolecules, illustrating relevant applications.
Bruno M. da S. Santos +3 more
wiley +1 more source
Molecules, 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
Asymmetric Lewis acid-catalyzed 1,3-dipolar cycloadditions [PDF]
, 2017 Highly tuned, one-point binding chiral iron and ruthenium complexes selectively coordinate and activate α,β-unsaturated aldehydes and ketones toward asymmetric catalytic Diels-Alder cycloaddition reactions.
Brinkmann, Yasmin +3 more
core
Orbital symmetry control in the nitrone-oxaziridine system. Nitrone photostationary states [PDF]
Journal of the American Chemical Society, 1971 Recent the orbital symmetry rules have been shown to apply to hetero-atom systems such as nitrone thermal cycloaddition reactions and the thermal and photochemical aziridine ring cleavage at the C-C bond. The concerted photocyclization is disrotatory and the reverse thermal cleavage is conrotatory in these molecules with four {pi} electrons.
Splitter, Janet S +3 more
openaire +4 more sources
A reactive nitrone-based organogel that self-assembles from its constituents in chloroform [PDF]
, 2016 The authors thank the EPSRC for funding (DTA studentship to JER, EP/K503162/1)The reversible reaction of an aldehyde with a hydroxylamine affords a nitrone which is capable of forming a stiff gel with chloroform at concentrations as low as 0.20 wt% (6 mM)
Philp, Douglas, Richards, Josh
core +1 more source
Chemistry – A European Journal, Volume 32, Issue 2, 9 January 2026.A small set of low‐valency multivalent 3,4,5‐trihydroxypiperidines was prepared through double reductive amination (DRA) of a sugar‐derived dialdehyde. Among them, trivalent derivative 37 emerged as a potent β‐glucocerebrosidase (GCase) inhibitor displaying an unexpected mixed‐type kinetic profile. The integration of kinetic analysis, NMR, docking, and
Maria Giulia Davighi +10 more
wiley +1 more source
STUDY OF CYCLOREVERSION OF NTTRONE-CY CLODIMERS [PDF]
Journal 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