Results 81 to 90 of about 5,760 (215)

Organoselenium in Nature

, 2018
Selenium, among the naturally occurring elements, is nowadays considered the most relevant for the redox homeostasis of living systems. In this chapter, its role in plants, bacteria, and humans is scholarly discussed. Some plants have the possibility to accumulate this element, thus becoming a natural source for animals and humans, in which selenium is
Lenardão, Eder João, Santi, Claudio, Sancineto, Luca   +2 more
openaire   +1 more source

Synthesis of chiral Nβ-protected amino diselenides from the corresponding amino alkyl iodides using NaBH2Se3 as a selenating reagent and their conversion to seleninic acids [PDF]

, 2015
A convenient approach has been presented for the synthesis of Nβ-protected amino diselenides from the corresponding amino alkyl iodides using in situ generated NaBH2Se3 as an efficient selenating reagent.
Panduranga, V., Panguluri, N.R., Prabhu, G., Sureshbabu, V.V., Vishwanatha, T.M.   +4 more
core   +1 more source

Synthesis of New Organoselenium Compounds: Characterization and Biological Studies

Macedonian Journal of Chemistry and Chemical Engineering, 2020
Two new organoselenium analogs, (3,3'-(1,2-phenylenebis(methylene))bis(2-selenoxo-2,3-dihydro-1H-imidazole-3,1-diyl))bis(methylene) dibenzoate (III) and 3,3'-(1,2-phenylenebis(methylene))bis(1-benzyl-1H-imidazole-2(3H)-selenone) (V), were derived from ...
Nimra Naz, Saima Saqib, Rizwan Ashraf, Muhammad Irfan Majeed, Muhammad Adnan Iqbal   +4 more
doaj   +1 more source

Preparation of Se(IV) Aryltrifluoromethylselenide Dichlorides

European Journal of Organic Chemistry, Volume 29, Issue 1, January 12, 2026.
An efficient synthesis of dichloro(aryl)(trifluoromethyl)‐λ4‐selanes via chlorination of aryl trifluoromethylselenides with SO2Cl2 is reported. The compounds were fully characterized and their stability studied. Density functional theory studies reveal an asynchronous concerted, exergonic pathway, while formation of the Se(VI) derivative is both ...
Julien Paut, Gabriel Goujon, Arnaud De Zordo‐Banliat, Guillaume Dagousset, Jorge Juan Cabrera‐Trujillo, Karinne Miqueu, Emmanuel Magnier, Bruce Pégot   +7 more
wiley   +1 more source

Harnessing coumarin-thio(seleno)cyanate conjugates: potent In vivo antiproliferative agents targeting carbonic anhydrases

Journal of Enzyme Inhibition and Medicinal Chemistry
We synthesised coumarin-based derivatives bearing thio- and selenocyanates to selectively inhibit tumour-associated carbonic anhydrases (CAs) IX and XII and to exert antiproliferative effects on tumour cells. Structural variations included chalcogen atom
Silvia Alejandra Meza-Ireta, Laura L. Romero-Hernández, Paloma Begines, Simone Giouvannuzi, Adrián Puerta, Aday González-Bakker, Amador Romero-Franco, Pablo Huertas, Alessio Nocentini, José Luis Vega-Báez, Sara Montiel-Smith, José G. Fernández-Bolaños, Maikel Castellano-Pozo, José M. Padrón, Claudiu T. Supuran, Penélope Merino-Montiel, Óscar López   +16 more
doaj   +1 more source

2-[(4-Chlorophenyl)selanyl]-3,4-dihydro-2H-benzo[h]chromene-5,6-dione: crystal structure and Hirshfeld analysis [PDF]

, 2017
The title organoselenium compound, C19H13ClO3Se {systematic name: 2-[(4-chlorophenyl)selanyl]-2H,3H,4H,5H,6H-naphtho[1,2-b]pyran-5,6-dione}, has the substituted 2-pyranyl ring in a half-chair conformation with the methylene-C atom bound to the methine-C ...
Cella, Rodrigo, Jotani, Mukesh M., Name, Luccas L., Prado, Karinne E., Tiekink, Edward R. T. *, Zukerman-Schpector, Julio   +5 more
core   +2 more sources

Synthesis, Biological Evaluation, and Molecular Docking of Tellurium‐Containing Benzothiazole Derivatives as Enzyme Inhibitors of DNA Gyrase and Dihydrofolate Reductase

BioMed Research International, Volume 2026, Issue 1, 2026.
Tellurium‐containing heterocycles represent an emerging class of organochalcogen compounds with notable redox properties and antimicrobial potential. Incorporation of tellurium into sulfur‐ and nitrogen‐containing frameworks can enhance biological activity through increased polarizability and favorable noncovalent interactions.
Olha Haleha, Valeriy Pantyo, Nataliya Korol, Elvira Danko, Mykhailo Onysko, Poorani Gurumallesh Prabu   +5 more
wiley   +1 more source

Reduction of Diphenyl Diselenide and Analogs by Mammalian Thioredoxin Reductase Is Independent of Their Gluthathione Peroxidase-Like Activity: A Possible Novel Pathway for Their Antioxidant Activity

Molecules, 2010
Since the successful use of the organoselenium drug ebselen in clinical trials for the treatment of neuropathological conditions associated with oxidative stress, there have been concerted efforts geared towards understanding the precise mechanism of ...
João Batista Teixeira Rocha, Diego Alves, Lisiane Oliveira Porciúncula, Jéssie Haigert Sudati, Caroline Wagner, Andressa Sausen de Freitas, Alessandro de Souza Prestes, Ige Joseph Kade   +7 more
doaj   +1 more source

Synthesis and characterization of novel organic heteroatom compounds from reaction of Woollins’ Reagent with various organic substrates [PDF]

, 2015
A series of new selenium-containing heteroatom compounds were synthesized in good yields by the reactions of Woollins’ reagent with various organic substrates such as cyclohexanamine, N-benzoylbenzamide, benzoic anhydride, 4-fluoro-N-(2-oxo-2-phenylethyl)
Athukorala Arachchige, Kasun Sankalpa, Cordes, David Bradford, Du, Junyi, Hua, Guoxiong, Slawin, Alexandra Martha Zoya, Woollins, J Derek   +5 more
core   +2 more sources

Cyanines Substituted on the Polymethine Chain: Synthesis, Resulting Properties, and Application Use Cases

ChemPlusChem, Volume 90, Issue 12, December 10, 2025.
Cyanines are small‐molecule dyes with a polymethine chain. For various applications, their properties can be tuned by varying not only chain length and auxochrome end groups but also the substituents on the polymethine chain. Here, we review the synthesis, properties, and applications of cyanines with substituents on the polymethine chain.
Rebecca Strada, David Dunlop, Peter Šebej   +2 more
wiley   +1 more source