448193-30-4Relevant academic research and scientific papers
Heavy-row atom effects on the strength of the weak nonbonded interactions between divalent selenium and halogen atoms
Iwaoka, Michio,Katsuda, Takayuki,Tomoda, Shuji,Harada, Jun,Ogawa, Keiichiro
, p. 518 - 519 (2002)
The 77Se NMR chemical shifts observed for 2-selenobenzyl halide derivatives and the density functional theoretical calculation revealed that the strength of intramolecular nonbonded interactions between a divalent selenium and halogen atoms decreases in the order, Se...F > Se...Cl ≥ Se...Br.
Imidazolium-containing diselenides for catalytic oxidations with hydrogen peroxide and sodium bromide in aqueous solutions
Alberto, Eduardo E.,Detty, Michael R.,Braga, Antonio L.
, p. 10476 - 10481,6 (2012/12/12)
The design and synthesis of imidazolium-containing diselenides 4a-c is described. The introduction of the N-methylimidazolium group gives freely soluble compounds in water, unlike the majority of common organic diselenides. Catalytic amounts of 4a-c effectively promote bromination of organic substrates using a safe and inexpensive NaBr/H2O2 system in water. Kinetics experiments revealed that the bromination of 4-pentenoic acid has a first-order dependence with respect to both NaBr and H2O2 concentrations The rate of reaction was also sensitive to the pH of the solution. Preparative reactions showed that, compared to 4a, diphenyl diselenide 5 was a poor catalyst and the ionic liquid 1-benzyl-3-methylimidazolium bromide 6 showed no catalytic activity with H2O2 indicating synergy from the combined functionality.
Synthesis and structure - activity correlation studies of secondary- and tertiary-amine-based glutathione peroxidase mimics
Bhabak, Krishna P.,Mugesh, Govindasamy
scheme or table, p. 9846 - 9854 (2010/04/29)
In this study, a series of secondary- and tertiary-amino-substituted diaryl diselenides were synthesized and studied for their glutathione peroxidase (GPx) like antioxidant activities with H2O2, cumene hydroperoxide, or tBuOOH as sub
Experimental and theoretical studies on the nature of weak nonbonded interactions between divalent selenium and halogen atoms
Iwaoka, Michio,Katsuda, Takayuki,Komatsu, Hiroto,Tomoda, Shuji
, p. 321 - 327 (2007/10/03)
(Chemical Equation Presented). To investigate the nature of weak nonbonded selenium...halogen interactions (Se...X interactions; X = F, Cl, and Br), three types of model compounds [2-(CH2X)C6H 4SeY (1-3), 3-(CH2
