Results 71 to 80 of about 5,760 (215)

Selenium in biology: Facts and medical perspectives [PDF]

, 2000
Several decades after the discovery of setenium as an essential trace element in vertebrates approximately 20 eukaryotic and more than 15 prokaryotic selenoproteins containing the 21(st) proteinogenic amino acid, selenocysteine, have been identified ...
Brigelius-Flohé, Regina, Böck, August, Flohé, Leopold, Gärtner, Roland, Köhrle, Josef, Meyer, Ortwin   +5 more
core   +1 more source

Synthesis of Unsymmetric Bis(heteroaryl) Selenides by Rhodium‐Catalyzed Exchange Reaction of Heteroaryl Fluorides and Ethers Using Se‐Heteroaryl Carboselenoates

European Journal of Organic Chemistry, Volume 29, Issue 5, 7 February 2026.
Various unsymmetric bis(heteroaryl) selenides are synthesized by the rhodium‐catalyzed exchange reaction of heteroaryl fluorides and ethers with Se‐heteroaryl 1‐adamatanecarboselenoates. The synthetic method is applicable to a broad range of five‐ and six‐membered heteroaryl derivatives and provides compounds containing multiple heteroatoms.
Masana Yazaki, Wei Han, Ren Suzuki, Mieko Arisawa   +3 more
wiley   +1 more source

Protective effects of organoselenium compounds against methylmercury-induced oxidative stress in mouse brain mitochondrial-enriched fractions

Brazilian Journal of Medical and Biological Research, 2011
We evaluated the potential neuroprotective effect of 1-100 µM of four organoselenium compounds: diphenyl diselenide, 3’3-ditri-fluoromethyldiphenyl diselenide, p-methoxy-diphenyl diselenide, and p-chloro-diphenyl diselenide, against methylmercury ...
D.F. Meinerz, M.T. de Paula, B. Comparsi, M.U. Silva, A.E. Schmitz, H.C. Braga, P.S. Taube, A.L. Braga, J.B.T. Rocha, A.L. Dafre, M. Farina, J.L. Franco, T. Posser   +12 more
doaj   +3 more sources

Crystal structure of 1-{2-[(2-methoxyphenyl)selanyl]phenyl}-4-phenyl-1H-1,2,3-triazole

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C21H17N3OSe, the dihedral angles between the central five-membered ring and the C- and N-bound rings are 17.89 (10) and 42.35 (10)°, respectively, indicating the molecule is twisted. The dihedral angle between the Se-bound rings is
Leandro R. S. Camargo, Julio Zukerman-Schpector, Anna M. Deobald, Antonio L. Braga, Edward R. T. Tiekink   +4 more
doaj   +1 more source

Molecular and supramolecular chemistry of mono- and di-selenium analogues of metal dithiocarbamates [PDF]

, 2018
This bibliographic review summarises the coordination chemistry of mono- and diselenium analogues of metal dithiocarbamate ligands, [RRꞌNCS2]-, as revealed by X-ray crystallography and spectroscopy (77Se NMR and infrared).
Abrahams, Alcock, Bala, Bao, Bao, Barnard, Bauza, Berry, Beurskens, Bhattacharya, Bigoli, Blanusa, Bonamico, Bonamico, Bonamico, Bonamico, Bondi, Brandenburg, Brinkhoff, Burgi, Burns, Cardell, Coucouvanis, Deplano, Dhayal, Dietzsch, Dietzsch, Dietzsch, Domenicano, Duddeck, Dymock, Edward R.T. Tiekink, El-khateeb, Esperȧs, Fackler, Felton, Finster, Furlani, Gould, Gronowitz, Groom, Guijarro, Haiduc, Hall, Healy, Heard, Heber, Hogarth, Hogarth, Hursthouse, Hursthouse, Hursthouse, Ivanov, Iwasaki, Jian, Kaiser, Karle, Kawai, Khan, Knapp, Koketsu, Kolář, Legon, Liao, Lokaj, Mahmudov, Malik, Malik, Malik, Malik, Mensforth, Monteiro, Moss, Mukherjee, Mutschler, Noordik, Olk, O’Brien, Pan, Pan, Pasek, Peter J. Heard, Politzer, Pollnitz, Riekkola, Saluschke, Scheiner, See Mun Lee, Seng, Slot, Spek, Stach, Sun, Tan, Tiekink, Tiekink, Tiekink, Tiekink, Tiekink, Trindade, Wang, Wang, Wikström, Ymén, Zvonkova   +104 more
core   +1 more source

Synthetic Access to Alkali Metal Selenides via Ball Milling

Zeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 2, 5 February 2026.
We report the synthesis of alkali metal selenides through reactive ball milling under an argon atmosphere. This mechanochemical pathway is solvent‐free and can be performed at room temperature within minutes to hours. The synthesis of several sodium polyselenides (Na2Sen) and alkali metal selenides (A2Se, A = K, Rb, Cs) is investigated and the received
Anahita I. A. Emminghaus, Josina Papenfuß, Alisha Mertens, Bertold Rasche   +3 more
wiley   +1 more source

Novel Reactions Using Organoselenium Compounds

YAKUGAKU ZASSHI, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +3 more sources

Crystal structure and Hirshfeld surface analysis of (2E,2′E)-1,1′-[selenobis(4,1-phenylene)]bis[3-(4-chlorophenyl)prop-2-en-1-one]

Acta Crystallographica Section E: Crystallographic Communications, 2019
In the title compound, C30H20Cl2O2Se, the C—Se—C angle is 99.0 (2)°, with the dihedral angle between the planes of the attached benzene rings being 79.1 (3)°. The average endocyclic angles (Se—C—C) facing the Se atom are 122.1 (5) and 122.2 (5)°.
Hazem Bouraoui, Youcef Mechehoud, Souheyla Chetioui, Rachid Touzani, Meriem Medjani, Ahmed Benmilat, Ali Boudjada   +6 more
doaj   +1 more source

Synthesis and anticancer activities of diquinazoline diselenides compounds [PDF]

, 2016
A series of novel diquinazoline diselenide compounds was designed and synthesized with substituted 4-chloroquinazoline and sodium diselenide. Their structures were confirmed by IR, 1H NMR, 13C NMR, and elemental analyses.The antitumor activity of the new
Cao, Kun, Huang, YinJiu, Ji, ChunNuan, Liu, Gang, Liu, XiGuang, Sun, Lin, Xu, ShengGuang   +6 more
core  

Arsonium ylides in organic synthesis [PDF]

, 2005
postprin
But, TYS, Chung, CWY, He, HS, Toy, PH
core   +1 more source