Results 131 to 140 of about 1,375 (174)

Photocatalytic oxidation of glycerol with red light employing quinacridone sensitized TiO₂ nanoparticles.

J Mater Chem A Mater
Yang Y, Nalesso M, Basagni A, Bonetto R, Signorini R, Agnoli S, Đorđević L, Sartorel A.   +7 more
europepmc   +1 more source

Hydrogen abstraction from H-donor substrates by the 6-CF3-benzotriazol-N-oxyl radical (TFNO)

Amorati, Annunziatini, Arends, Astolfi, Baciocchi, Baciocchi, Baciocchi, Baciocchi, Baciocchi, Baiocco, Bernardi, Brandi, Brandi, Cadenas, Cai, Coniglio, Curran, d'Acunzo, d'Acunzo, Deslongchamps, Doba, Galli, Galli, Galli, Griller, Gross, Ishii, Ishii, Ives, Kirby, Koppel, Koshino, Koshino, Labinger, Lind, Lowry, Lund, Luo, Malatesta, Mayer, Minisci, Minisci, Olivella, Recupero, Riva, Sawaki, Silverman, Subiròs-Funosas, Warnatz, Wayner   +49 more
core   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Aminoxyl radical addition to arylketenes

Journal of Physical Organic Chemistry, 2006
AbstractKinetic studies of the addition of the aminoxyl radical TEMPO (2,2,6,6‐tetramethylpiperidinylaminoxyl, TO·) to the 4‐substituted phenylketenes 8 (4‐RC6H4CHCO, R = NO2, CN, Cl, H, CH3, CH3O) and to 3‐pyridylketene (15) reveal a correlation of logk2(TEMPO) with the Hammett sigma parameters of the substituents (including the aza substituent of ...
Austin Acton, Annette D. Allen, Andrei V. Fedorov, Huda Henry‐Riyad, Thomas T. Tidwell   +4 more
openaire   +1 more source

α-Aminoxylation of Ketones and β-Chloro-α-aminoxylation of Enones with TEMPO and Chlorocatecholborane

Organic Letters, 2012
Oxidation of various cyclic and acyclic ketones under mild conditions with chlorocatecholborane, a bulky pyridine base, and TEMPO to the corresponding α-aminoxylated products in good to excellent yields (52-99%) is described. For enones as substrates, products of a β-chloro-α-aminoxylation are obtained (70-89%).
Yi, Li, Martin, Pouliot, Thomas, Vogler, Philippe, Renaud, Armido, Studer   +4 more
openaire   +2 more sources

Aminoxyl radical substituted uranyl compounds

Inorganica Chimica Acta, 2001
Abstract A series of adducts formed by association of the uranyl ion, UO 22+ , with either nitronyl nitroxide substituted pyridine andtriazole ligands or their imino nitroxide counterpart are described. The stability of the radical unit in the vicinity of the U centreappeared to be dependent on whether this unit is directly involved or not in the ...
Nathalie Daro, Philippe Guionneau, Stéphane Golhen, Daniel Chasseau, Lahcène Ouahab, Jean-Pascal Sutter   +5 more
openaire   +1 more source

Aminoxyl radicals as crosslinks for macromolecules of polyvinylpyrrolidone

Organic & Biomolecular Chemistry, 2004
Using polyvinylpyrrolidone as an example, it has been shown that photolysis of ceric ammonium nitrate at room temperature can result in crosslinking of macromolecules. This process correlates with the formation of stable aminoxyl radicals, which are registered by EPR.
Evgenii Ya, Davydov, Elena N, Afanas'eva, Irina S, Gaponova, Georgii B, Pariiskii   +3 more
openaire   +2 more sources

Origins of Selectivities in Proline-Catalyzed α-Aminoxylations

Journal of the American Chemical Society, 2004
The mechanisms, transition structures, regioselectivity, and stereoselectivity of proline-catalyzed alpha-aminoxylation reactions were studied with density functional theory (B3LYP/6-31G(d)). The most favorable transition structure involves the nucleophilic attack of the (E)-proline enamine to the oxygen of the nitrosobenzene with proton transfer from ...
Paul Ha-Yeon, Cheong, K N, Houk
openaire   +2 more sources

Aminoxyl radicals bearing a mesogenic core

Tetrahedron Letters, 2001
Abstract A series of aminoxyl radicals (nitronyl nitroxide or TEMPO) bearing biphenylcarbonitrile as a mesogenic core ( 2a–2c and 3a–3c ) was prepared. Among them, unusual magnetic transition from the original Curie–Weiss phase to another magnetic phase well expressed by a singlet–triplet model was found in the 4′-undecyloxy-4-biphenylcarbonitrile ...
Hiroshi Ikemoto, Hiroki Akutsu, Jun-ichi Yamada, Shin'ichi Nakatsuji   +3 more
openaire   +1 more source

ChemInform Abstract: α‐Aminoxylation of Ketones and β‐Chloro‐α‐aminoxylation of Enones with TEMPO and Chlorocatecholborane.

ChemInform, 2012
AbstractA variety of acyclic and cyclic ketones react with TEMPO in the presence of chlorocatecholborane CBC and TMP as bulky pyridine base to give the α‐aminoxylated products.
Yi Li, Martin Pouliot, Thomas Vogler, Philippe Renaud, Armido Studer   +4 more
openaire   +1 more source

Electron-acceptor effect of aminoxyl radicals

Journal of the Chemical Society, Perkin Transactions 2, 1991
Acidic properties of several compounds with aminoxyl-based spin labels were found to be abnormally strong when compared with those of diamagnetic analogues. Analysis of this phenomenon in terms of both Taft constants and Hinze–Jaffe–Huheey group electronegativities enabled us to attribute it to the strong electron-acceptor effect of the aminoxyl group ...
Vitalii Yu. Nagy, Oleg M. Petrukhin, Yurii A. Zolotov, Leonid B. Volodarskii   +3 more
openaire   +1 more source