Results 21 to 30 of about 1,991 (226)

Electrochemical transient iodination and coupling for selenylated 4-anilinocoumarin synthesis

Green Synthesis and Catalysis, 2021
An electrochemical transient iodination and coupling reaction has been designed for constructing selenylated 4-anilinocoumarins via the domino reactions of 4-anilinocoumarins and diorganyl diselenides under base-, chemical oxidant- and external ...
Yan Wu, Jin-Yang Chen, Hong-Rui Liao, Xiao-Rong Shu, Li-Lan Duan, Xiao-Feng Yang, Wei-Min He   +6 more
doaj   +1 more source

Paired Electrolysis Enabled Cyanation of Diaryl Diselenides with KSCN Leading to Aryl Selenocyanates

Molecules, 2023
The first example of paired electrolysis-enabled cyanation of diaryl diselenides, with KSCN as the green cyanating agent, has been developed. A broad range of aryl selenocyanates can be efficiently synthesized under chemical-oxidant- and additive-free ...
Wei-Bao He, Luo-Lin Tang, Jun Jiang, Xiao Li, Xinhua Xu, Tian-Bao Yang, Wei-Min He   +6 more
doaj   +1 more source

Five Hypotheses on the Origins of Temperature Dependence of ⁷⁷Se NMR Shifts in Diselenides. [PDF]

Inorg Chem
Notable thermal shifts in diselenides have been documented in 77Se NMR for more than 50 years, but no satisfactory explanation has been found. Here, five hypotheses are considered as possible explanations for the large temperature dependence of the 77Se ...
Koziel AC, Bortoli M, Tremblay M, Zhao Y, Orian L, Yang ZJ, Schley ND, Macdonald JE.   +7 more
europepmc   +2 more sources

Versatile Electrochemical Synthesis of Selenylbenzo[b]Furan Derivatives Through the Cyclization of 2-Alkynylphenols

Frontiers in Chemistry, 2022
We report an electrochemical oxidative intramolecular cyclization reaction between 2-alkynylphenol derivatives and different diselenides species to generate a wide variety of substituted-benzo[b]furans.
Carlos V. Doerner, Marcos R. Scheide, Celso R. Nicoleti, Daniele C. Durigon, Vinícius D. Idiarte, Martinho J. A. Sousa, Samuel R. Mendes, Sumbal Saba, José S. S. Neto, Guilherme M. Martins, Jamal Rafique, Jamal Rafique, Antonio L. Braga, Antonio L. Braga   +13 more
doaj   +1 more source

Thiol peroxidase-like activity of some intramolecularly coordinated diorganyl diselenides [PDF]

, 2005
Several new diaryl diselenides having intramolecular coordinating groups have been synthesized by ortho-lithiation/Na2Se2 routes in good yield. Bis[2-(N-phenylferrocenecarboxamide)] diselenide (10), bis[2-(N-tert-butylferrocenecarboxamide)] diselenide ...
Kumar, Sangit, Singh, Harkesh B.
core   +1 more source

Cyclization of Thiopropargyl Benzimidazoles by Combining Iron(III) Chloride and Diorganyl Diselenides

, 2019
A practical synthetic approach to the synthesis of 3-(organoselenyl)-imidazothiazines was developed. The methodology involved the regioselective 6-endo-dig cyclization of thiopropargyl benzimidazoles promoted by diorganyl diselenides and iron­(III ...
Gilson Zeni (1457287), João A. G. Kazmirski (7508294), Tales A. C. Goulart (7508291), Davi F. Back (1457293)   +3 more
core   +4 more sources

Reaction of bis[(2-chlorocarbonyl)phenyl] Diselenide with Phenols, Aminophenols, and Other Amines towards Diphenyl Diselenides with Antimicrobial and Antiviral Properties

Molecules, 2017
A reaction of bis[(2-chlorocarbonyl)phenyl] diselenide with various mono and bisnucleophiles such as aminophenols, phenols, and amines have been studied as a convenient general route to a series of new antimicrobial and antiviral diphenyl diselenides ...
Mirosław Giurg, Anna Gołąb, Jakub Suchodolski, Rafał Kaleta, Anna Krasowska, Egbert Piasecki, Magdalena Piętka-Ottlik   +6 more
doaj   +1 more source

N-fluorobenzenesulfonimide (NFSI)-mediated rapid regioselective oxyselenation of internal alkenes with diselenides

Results in Chemistry, 2021
A rapid and efficient NFSI-mediated hydroxy or alkoxy-selenation of internal alkenes and chalcones is presented. This reaction proceeds smoothly at room temperature and features broad substrate scope, which employs NFSI as the oxidizing agent, affording ...
Li-Qiu Liu, Jiu-Ling Li, Ying-Chun Wang, Heng-Shan Wang   +3 more
doaj   +1 more source

Thiol modifier effects of diphenyl diselenides: insight from experiment and DFT calculations [PDF]

, 2023
A combination of spectroscopic, chromatographic and computational approaches was employed to investigate the reaction of several diselenides of formula (R-PhSe)(2) (R = CH3O, CH3, H, Cl, CF3) with a thiolate nucleophile, leading to the breaking of the ...
Oliveira, CS, Rocha, JBT, Nogara, PA, Madabeni, A, Bortoli, M, Orian, L   +5 more
core   +1 more source

2,2′-(Diselane-1,2-diyl)bis(N,N-dimethylnicotinamide)

IUCrData, 2017
The title compound, C16H18N4O2Se2, is centrosymmetric. The dihedral angle between the pyridine ring and the amide side chain is 56.20 (16)°. In the crystal, a weak C—H...O interaction links the molecules into [010] chains.
Zhiqiang Guo, Yakong Wang, Ying Xu, Xuehong Wei   +3 more
doaj   +1 more source