Results 21 to 30 of about 17,306 (293)

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

Desulfurization of Dibenzothiophene and Oxidized Dibenzothiophene Ring Systems

Molecules, 2010
Lithium, used in conjunction with sodium metal, produces a high yield of biphenyl when reacted with dibenzothiophene, dibenzothiophene sulfoxide or dibenzothiophene sulfone.
Diego P. Morales, Alexander S. Taylor, Steven C. Farmer   +2 more
doaj   +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

Modular polyoxometalate-layered double hydroxides as efficient heterogeneous sulfoxidation and epoxidation catalysts [PDF]

, 2018
Selective sulfoxidation of sulfides and epoxidation of olefins are two types of important organic reactions and the corresponding products of sulfoxides, sulfones and epoxides are widely used as raw materials in industrial processes.
Al-Maksoud, Bayat, Cai, Chen, Chen, Chen, Doherty, Dou, Fan, Graham, Guo, Herrmann, Herrmann, Herrmann, Hong, Huang, Iyi, Jia, Jia, Karimi, Karimi, Kawahara, Kon, Koo, Lechner, Leng, Li, Li, Li, Liang, Liu, Liu, Liu, Miras, Mizuno, Mizuno, Omwoma, Park, Peacock, Poli, Qiao, Salvati, Shi, Shi, Song, Venturello, Wang, Weir, Xie, Xu, Yamaguchi, Yang, Zhao, Zhao, Zhao, Zhao, Zhou, Zhou   +57 more
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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 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

NaSH-HCl mediated reduction of sulfoxides into sulfides under organic solvent-free reaction conditions

Green Chemistry Letters and Reviews, 2020
NaSH·H2O and 37% aqueous solution of HCl were employed in reduction of sulfoxides to sulfides at room or elevated temperature in the absence of organic reducing agent and solvent-free reaction conditions. Operationally simple transformation took place in
Anže Zupanc, Marjan Jereb
doaj   +1 more source

Degradation of lansoprazole and omeprazole in the aquatic environment [PDF]

, 2006
Lansoprazole and omeprazole degrade in water leading to sulfides, benzimidazolones and a red complex material. Degradation is accelerated in acid medium and by solar simulator irradiation.
BRIGANTE M., DELLA GRECA, MARINA, IESCE, MARIA ROSARIA, PREVITERA, LUCIO, RUBINO, MARIA, TEMUSSI, FABIO   +5 more
core   +1 more source

A Novel, Facile and Selective Synthesis of Sulfoxides Catalyzed by CuFe2O4/PEO-SO3H as a Reusable Heterogeneous Nanocatalyst [PDF]

Nanochemistry Research
In the present work, poly(ethylene oxide) (PEO) coated sulfonated copper ferrite nanoparticles were successfully used as an efficient, green, easy-to-use, magnetic, reusable, bimetallic, environment-friendly, and heterogeneous solid acid catalyst in the ...
Mojtaba Azizi, Ali Bodaghi, Abbas Abdolmaleki   +2 more
doaj   +1 more source