Results 31 to 40 of about 5,760 (215)

Developments in Synthetic Application of Selenium(IV) Oxide and Organoselenium Compounds as Oxygen Donors and Oxygen-Transfer Agents

open access: yesMolecules, 2015
A variety of selenium compounds were proven to be useful reagents and catalysts for organic synthesis over the past several decades. The most interesting aspect, which emerged in recent years, concerns application of hydroperoxide/selenium(IV) oxide and ...
Jacek Młochowski   +1 more
doaj   +1 more source

Chemoselective Preparation of New Families of Phenolic-Organoselenium Hybrids—A Biological Assessment

open access: yesMolecules, 2022
Being aware of the enormous biological potential of organoselenium and polyphenolic compounds, we have accomplished the preparation of novel hybrids, combining both pharmacophores in order to obtain new antioxidant and antiproliferative agents.
Paloma Begines   +6 more
doaj   +1 more source

Selenium- and Tellurium-Based Antioxidants for Modulating Inflammation and Effects on Osteoblastic Activity

open access: yesAntioxidants, 2017
Increased oxidative stress plays a significant role in the etiology of bone diseases. Heightened levels of H2O2 disrupt bone homeostasis, leading to greater bone resorption than bone formation. Organochalcogen compounds could act as free radical trapping
Xi Lu   +6 more
doaj   +1 more source

One-pot synthesis of orthogonally protected dipeptide selenazoles employing Nα-amino selenocarboxamides and α-bromomethyl ketones [PDF]

open access: yes, 2014
A simple and efficient protocol for the synthesis of selenazole containing dipeptidomimetics using Nα-amino selenocarboxamides and α-bromomethyl ketones is described. All the compounds made were isolated in good yields and fully characterized.
Madhu, C.   +4 more
core   +1 more source

Swimming exercise and diphenyl diselenide-supplemented diet modulate cerebral cortical and striatal GABA uptake in aged rats

open access: yesAnais da Academia Brasileira de Ciências, 2022
Aging is characterized by several neurochemical modifications involving structural proteins and neurotransmitters. Exercise has been recognized as an enhancer of overall health; whereas, diphenyl diselenide (PhSe)2 has been reported to have antioxidant ...
ANA PAULA PESARICO   +3 more
doaj   +1 more source

Molecular Packing in Crystals of Phenoselenazine [PDF]

open access: yes, 1976
The crystal structure of phenoselenazine was solved by molecular-packing analysis. Trial models of the rigid molecule were oriented and positioned in the Cheshire cell. The refinement was carried out by structure-factor least-squares calculations using
Conde Amiano, Alejandro   +3 more
core   +1 more source

Design, Synthesis, and Biological Evaluation of Novel Hydroxamic Acid-Based Organoselenium Hybrids

open access: yesPharmaceuticals, 2023
We report the design and synthesis of novel hydroxamic acid-tethered organoselenium (OSe) hybrids. Their antimicrobial and anticancer activities were assessed against different microbes (e.g., Candida albicans (C. albicans), Escherichia coli (E.
Jameelah S. Alotaibi   +2 more
doaj   +1 more source

Organoselenium( II ) halides containing the pincer 2,6-(Me 2 NCH 2 ) 2 C 6 H 3 ligand – an experimental and theoretical investigation [PDF]

open access: yes, 2014
New organoselenium( II )halidesofthetype[RSe] + X − [R = 2,6-(Me 2 NCH 2 ) 2 C 6 H 3 ;X=Cl( 2 ), Br ( 3 ), I ( 4 )] were prepared by cleavage of the Se – Se bond in R 2 Se 2 ( 1 )withSO 2 Cl 2 followed by halogen ...
Arca, Massimiliano   +5 more
core   +2 more sources

Crystal structure of 4-phenyl-1-{2-[(2,4,6-trimethylphenyl)selanyl]phenyl}-1H-1,2,3-triazole

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C23H21N3Se, the C-bound phenyl ring is almost coplanar with the central five-membered ring [dihedral angle = 2.84 (10)°], but the N-bound benzene ring is inclined [dihedral angle = 47.52 (10)°].
Leandro R. S. Camargo   +4 more
doaj   +1 more source

Recent Advances in the Synthesis of Selenophenes and Their Derivatives

open access: yesMolecules, 2020
The selenophene derivatives are an important class of selenium-based heterocyclics. These compounds play an important role in prospecting new drugs, as well as in the development of new light-emitting materials.
Paola S. Hellwig   +5 more
doaj   +1 more source

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