Results 21 to 30 of about 10,849 (224)

Synthesis of Nitroxide-Annulated Carbocycles and Heterocycles [PDF]

, 2012
New, pyrroline nitroxide annulated lactones, polycycles, and maleimide were synthesized by classical and microwave-assisted methodology. We report the application of the metathesis reaction in the presence of nitroxide yielding a pyrroline nitroxide ...
Berente, Zoltán, Bognár, Balázs, Hideg, Kálmán, Kálai, Tamás, Zsolnai, Dániel   +4 more
core   +1 more source

Electropolymerized Polythiophenes Bearing Pendant Nitroxide Radicals [PDF]

ACS Macro Letters, 2016
We report a facile way to synthesize polythiophenes carrying pendant 2,2,6,6-tetramethylpiperidinyl-1-oxyl (TEMPO) radicals, here called PTATs, by electropolymerization in boron trifluoride diethyl etherate (BFEE). The spacing between the TEMPO radical and the polythiophene backbone is varied by an alkyl spacer (n = 2, 4, 6), and the electronic and ...
Fei, Li, Yanpu, Zhang, Se Ra, Kwon, Jodie L, Lutkenhaus   +3 more
openaire   +2 more sources

Oxidative Desulfurization Activity of NIT Nitroxide Radical Modified Metallophthalocyanine

Molecules, 2022
In the present study, metallophthalocyanines were modified with NIT nitroxide radicals through chemical bonds to prepare a series of metallophthalocyanines–NIT catalysts (MPcTcCl8-NIT, M=Mn2+, Fe2+, Co2+, Ni2+, Cu2+ and Zn2+) applied for oxidative ...
Min Tian, Yang He, Gai Zhang, Haibo Wang
doaj   +1 more source

From Free Radicals and Spin-Chemistry Over Spin-Dynamics and Hyperpolarization to Biology and Materials Science [PDF]

, 2017
This special issue of ZPC is dedicated to the 80th anniversary of Kev Salikhov, a prominent scientist who has made seminal contributions to spin chemistry, chemical kinetics, spin hyperpolarization and magnetic resonance.
Buntkowsky, Gerd, Ivanov, Konstantin, Vieth, Hans-Martin   +2 more
core   +1 more source

Spirocyclic Nitroxides as Versatile Tools in Modern Natural Sciences: From Synthesis to Applications. Part I. Old and New Synthetic Approaches to Spirocyclic Nitroxyl Radicals

Molecules, 2021
Spirocyclic nitroxyl radicals (SNRs) are stable paramagnetics bearing spiro-junction at α-, β-, or γ-carbon atom of the nitroxide fragment, which is part of the heterocyclic system.
Elena V. Zaytseva, Dmitrii G. Mazhukin
doaj   +1 more source

Synthesis and potential use of 1,8-naphthalimide type O-1(2) sensor molecules [PDF]

, 2013
New double (fluorescent and spin) sensor molecules containing 4-amino substituted 1,8-naphthalimide as a fluorophore and a sterically hindered amine (pre-nitroxide) or pyrroline nitroxide as a quencher and radical capturing moiety were synthesized.
Bognár, Bognár, Bojinov, Das, Ferhan Ayaydin, Fernandez, Fischer, Giannopolitis, Gonsales, Hankovszky, Hideg, Hideg, Hideg, Jia, Karstens, Kertész, Kollár, Kovalska, Kálai, Kálai, Kálmán Hideg, Lemp, Li, Li, Lion, Lloyd, Macpherson, Magde, Patonay, Rosantsev, Sabnis, Sato, Schreiber, Singh, Sár, Tamás Kálai, Tansakul, Vogel, Yang, Zheng, Éva Hideg, Šnyrychová   +41 more
core   +1 more source

Restricting Magnetic Interaction Pathways in Polyoxometalate Salts of Cationic Nitronyl Nitroxide Free Radicals

Molecules, 2004
Salts 1 and 2 that combine the [W6O19]2- Lindqvist anion with the cationicnitronyl nitroxide (NN) free radicals p-MepyNN+ and nBu3NCH2NN+ , respectively, havebeen synthesized and their structural and magnetic properties have been studied.
Francisco M. Romero, Carlos J. Gómez-García, Carlos Giménez-Saiz, Ana Tarazón   +3 more
doaj   +1 more source

4-Amino-TEMPO loaded liposomes as sensitive EPR and OMRI probes for the detection of phospholipase A2 activity

Scientific Reports, 2023
This work aims at developing a diagnostic method based on Electron Paramagnetic Resonance (EPR) measurements of stable nitroxide radicals released from “EPR silent” liposomes.
Diego Alberti, Eric Thiaudiere, Elodie Parzy, Sabrina Elkhanoufi, Sahar Rakhshan, Rachele Stefania, Philippe Massot, Philippe Mellet, Silvio Aime, Simonetta Geninatti Crich   +9 more
doaj   +1 more source

High molar mass segmented macromolecular architectures by nitroxide mediated polymerisation [PDF]

, 2013
A straightforward synthetic pathway based on nitroxide mediated polymerisation (NMP) for the synthesis of a variety of high molar mass segmented copolymers comprising both polystyrene (PS) and polyether segments is reported.
Claessens, Sven, Du Prez, Filip, Mes, Edwin PC, Petton, Lionel, Van Damme, Freddy, Van Der Wal, Hanno, Verbrugghe, Sam   +6 more
core   +2 more sources

Silver Nanoparticles Densely Grafted with Nitroxides as a Recyclable Green Catalyst in the Selective Oxidation of Alcohols

Nanomaterials, 2022
The selective oxidation of alcohols, leading to appropriate aldehydes, is widely recognised as one of the most important reactions in organic synthesis.
Agnieszka Krogul-Sobczak, Natalia Pisarek, Piotr Cieciórski, Elżbieta Megiel   +3 more
doaj   +1 more source