Results 31 to 40 of about 35,246 (344)

Deep eutectic solvent mediated controlled and selective oxidation of organic sulfides and hydroxylation of arylboronic acids

Current Research in Green and Sustainable Chemistry, 2021
A mild and efficient protocol has been developed for the controlled oxidation of wide variety of organic sulfides to corresponding sulfoxides using deep eutectic solvent (DES) as catalyst and hydrogen peroxide as oxidant under ambient condition.
Apurba Dutta, Anirban Garg, Jyotsna Borah, Ramyata Priyam Borah, Diganta Sarma   +4 more
doaj   +1 more source

A kinetic and theoretical study of the borate catalysed reactions of hydrogen peroxide: the role of dioxaborirane as the catalytic intermediate for a wide range of substrates [PDF]

, 2012
Our recent work has provided new insights into the equilibria and species that exist in aqueous solution at different pHs for the boric acid – hydrogen peroxide system, and the role of these species in oxidation reactions. Most recently, (M. C.
Abel, Adam, Amels, Bennett, Bunton, Chernyshov, Curci, Curci, Curci, D. Martin Davies, Davies, Davies, Davies, Duffin, Durrant, Fortnum, Hansch, Hanson, Hanson, Hoffmann, Hoffmann, Hussain, Ingri, Kamyshny, Lin, Lin, Marcus C. Durrant, Marenich, Maya, Mckillop, McKillop, Michael E. Deary, Mohammad, Muzart, Ogata, Pizer, Salentine, Sawaki, Sawwan, Schubert, Spessard, Wilson, Wilson, Wilson   +43 more
core   +1 more source

Sulfur-Containing Monoterpenoids as Potential Antithrombotic Drugs: Research in the Molecular Mechanism of Coagulation Activity Using Pinanyl Sulfoxide as an Example

Frontiers in Pharmacology, 2018
In this article we present the synthesis of enantiomerically pure sulfoxide and study the influence of this compound on hemostasis. Detailed NMR studies and molecular dynamics simulations using sodium dodecyl sulfate (SDS) membrane models indicated that ...
Liliya E. Nikitina, Liliya E. Nikitina, Sergei V. Kiselev, Valeriya A. Startseva, Andrei V. Bodrov, Zulfiya R. Azizova, Olga T. Shipina, Inna V. Fedyunina, Sergei V. Boichuk, Olga A. Lodochnikova, Vladimir V. Klochkov, Leisan F. Galiullina, Aliya V. Khaliullina, Aliya V. Khaliullina   +13 more
doaj   +1 more source

Sulfur analysis of Bolu-Mengen lignite before and after microbiological treatment using reductive pyrolysis and gas chromatography/mass spectrometry [PDF]

, 2005
Atmospheric pressure-temperature programmed reduction coupled with on-line mass spectrometry (AP-TPR/MS) is used for the first time on microbiologically treated coal samples as a technique to monitor the degree of desulfurization of the various sulfur ...
Bozdemir T., Brown S. D., Durusoy T., Durusoy T., Gryglewicz G., J. Yperman, Jagtoyen M., Juszczak A., Karavaiko G. I., Klein J., Maes I. I., Maes I. I., Maes I. I., Mullens S., Olson G., Olsson G., R. Carleer, Rutkowski P., S. Mullens, Selsbo S., Stefanova M., T. Bozdemir, T. Durusoy, Van Aelst J., Van Aelst J., Y. Yürüm, Yperman J., Álvarez R.   +27 more
core   +1 more source

Inhibition of methionine sulfoxide reduction by dimethyl sulfoxide

BMB Reports, 2009
Dimethyl sulfoxide (DMSO) is widely used in chemistry and biology as a solvent and as a cryoprotectant. It is also used as a pharmaceutical agent for the treatment of interstitial cystitis and rheumatoid arthritis. Previous reports described DMSO as being reduced by methionine-S-sulfoxide reductase (MsrA).
Kim, Geun-Hee Kwak, Kim Hy, Seung Hee Choi   +3 more
openaire   +4 more sources

EFFECT OF PROPELLER MIXER TURNS NUMBER ON THE SULFIDES OXIDATION RATE IN THE OIL PHASE IN A MIXING REACTOR

Известия высших учебных заведений: Проблемы энергетики, 2019
The effect of the rotation number of the propeller mixer on the concentration of sulfoxide sulfur in the oil fraction of Arlan oil during the oxidation of this fraction sulfides with hydrogen peroxide along with an acid catalyst, a mixture of formic and ...
R. E. Lipantyev, V. P. Tutubalina
doaj   +1 more source

The applicability of sulfoxide Michael acceptor – 2­-(S)-­[(4­-methylphenyl)sulfinyl]-­2­-cyclopenten­-1­-one in constructing the carbon skeleton of 9,11­-secosterols [PDF]

Proceedings of the Estonian Academy of Sciences
A possibility of use of the Michael addition reaction of the A,B­-ring fragment enolate to sulfoxide 2­-(S)-­[(4­-methylphenyl)sulfinyl]-­2­-cyclopenten­-1­-one for constructing the main skeleton of 9,11­-secosterols was studied.
Kristi Rõuk, Marek Kõllo, Ivar Järving, Margus Lopp   +3 more
doaj   +1 more source

Characterization of Sulfides in Atmospheric Residue Fractions Using Selective Oxidation Followed by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Energies, 2022
An improved analytical method was developed for identifying sulfide compounds from aromatic fractions in Lungu atmospheric residue (LGAR). Sulfides in residue aromatics were selectively oxidized into sulfoxides using tetrabutyl ammonium periodate (TBAP ...
Wenlong Cui, Chenze Zhao, Qingqing Zhu, Cheli Wang   +3 more
doaj   +1 more source

Synthesis of enantioenriched sulfoxides [PDF]

, 2010
This review discusses strategies for the asymmetric synthesis of sulfoxides, compounds with many applications in stereoselective synthesis and in some cases with pharmaceutical application.
Kelly, Padraig, Lawrence, Simon E., Maguire, Anita R., O'Mahony, Graham E.   +3 more
core   +1 more source

The redox transformations and nucleophilic replacements as possible metabolic reactions of the drug “Triazaverin”. The chemical modeling of the metabolic processes [PDF]

, 2015
As a model of metabolic transformations of antiviral drug “Triazaverin” and its analogues‑2-alkylthio‑6-nitro‑1,2,4-triazolo[5,1-c][1,2,4]triazine‑7-ones 1a-d examined the oxidation of alkylthio groups to the corresponding sulfoxides 2a-d and sulfones 3a-
Medvedeva, N. P., Rusinov, V. L., Sapozhnikova, I. S., Ulomskii, E. N.   +3 more
core   +3 more sources