Results 31 to 40 of about 86,294 (392)

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

Effect of substituents in sulfoxides on the enhancement of thermoelectric properties of PEDOT:PSS: experimental and modelling evidence

, 2020
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), being the most popular conductive polymer, has been doped with various additives with the aim of improving its thermoelectric performance. Among all additives, dimethyl sulfoxide (DMSO)
Qiang Zhu, E. Yıldırım, Xizu Wang, A. Kyaw, T. Tang, X. Y. D. Soo, Z. Wong, Gang Wu, Shuo‐Wang Yang, Jianwei Xu   +9 more
semanticscholar   +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

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

Asymmetric oxidation of sulfides [PDF]

, 2016
This review discusses synthesis of enantiopure sulfoxides through the asymmetric oxidation of prochiral sulfides. The use of metal complexes to promote asymmetric sulfoxidation is described in detail, with a particular emphasis on the synthesis of ...
Ford, Alan, Maguire, Anita R., O'Mahony, Graham E.   +2 more
core   +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
core   +1 more source

A Click Chemistry Approach towards Flavin-Cyclodextrin Conjugates—Bioinspired Sulfoxidation Catalysts

Molecules, 2015
A click chemistry approach based on the reaction between alkynylflavins and mono(6-azido-6-deoxy)-β-cyclodextrin has proven to be a useful tool for the synthesis of flavin-cyclodextrin conjugates studied as monooxygenase mimics in enantioselective ...
Petra Tomanová, Jiří Šturala, Miloš Buděšínský, Radek Cibulka   +3 more
doaj   +1 more source