Log in

Relevant bibliographies by topics / Catalysis by sulfides / Journal articles

To see the other types of publications on this topic, follow the link: Catalysis by sulfides.

Journal articles on the topic 'Catalysis by sulfides'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Catalysis by sulfides.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Kadikova, Rita, Ilfir Ramazanov, Alexey Vyatkin, and Usein Dzhemilev. "Zirconium-Catalyzed Reaction of 1-Alkynyl Sulfides with Et3Al: A Novel Route to Trisubstituted 1-Alkenyl Sulfides." Synlett 29, no. 13 (2018): 1773–75. http://dx.doi.org/10.1055/s-0037-1610431.

Full text

Abstract:

The reaction of 1-alkynyl sulfides and alkynyl sulfoxides with Et3Al under zirconocene catalysis conditions has been studied. The interaction between 1-alkynyl sulfides and Et3Al in the presence of catalytic amounts of Cp2ZrCl2 leads to trisubstituted 1-alkenyl sulfides in moderate to good yields (56–73%) with high regioselectivity and stereoselectivity. 1-Alkynyl sulfoxides, upon treatment with Et3Al under the same reaction conditions, undergoes reduction to give sulfides. The excess of Et3Al (7 equiv) in this reaction causes cyclic carboalumination of in situ generated 1-alkynyl sulfide to

APA, Harvard, Vancouver, ISO, and other styles

2

Marques, Antonio, Massimo di Matteo, and Marie-Françoise Ruasse. "Remarkable efficiency of iron(III) versus manganese(III) tetraphenylporphyrins as catalysts for fast and quantitative oxidation of sulfides into sulfones by hydrogen peroxide." Canadian Journal of Chemistry 76, no. 6 (1998): 770–75. http://dx.doi.org/10.1139/v98-050.

Full text

Abstract:

The efficiency of various metallo-phtalocyanines (Pht) and -tetraphenylporphyrins (TPP) as catalysts for the H2O2 oxidations of dibenzylsulfide, phenylchloroethylsulfide, and thioanisole is investigated in ethanol and acetonitrile, using imidazole as a cocatalyst. Neither PhtNiII nor TPPCoII exhibits any catalytic activity. PhtMnII and TPPMnIIICl accelerate markedly these reactions but do not promote quantitative oxidations, at most 70% of the sulfides being transformed into sulfoxides. In contrast, with PhtFeII sulfoxides are obtained with a 100% yield from sulfides. Finally, the only catalys

APA, Harvard, Vancouver, ISO, and other styles

3

Bunton, Clifford A., Houshang J. Foroudian, Nicholas D. Gillitt, and Anurag Kumar. "Article." Canadian Journal of Chemistry 77, no. 5-6 (1999): 895–902. http://dx.doi.org/10.1139/v99-057.

Full text

Abstract:

Oxidations of sulfides and phosphorus(V) esters of thiols by H2O2 are catalyzed by H2SO4 and HClO4. Sulfides are 4-ZC6H4SMe, 1a-1e, respectively, Z = MeO, Me, H, Cl, NO2; PhSCH2CH2Cl, 2, Ph2S, 3, and the esters are Ph(R)PO·SEt, 4a, 4b, R = Ph, EtO. Electron donation by Z moderately accelerates reaction, but the sulfides are much more reactive than the esters. Reactions are first order in H2O2 and substrate, and second-order rate constants, k2, in H2SO4 are related to excess acidity, X. Plots of log k2 against X have slopes in the range 0.61-0.85. Rate constants are similar for given concentrat

APA, Harvard, Vancouver, ISO, and other styles

4

Pimerzin, Aleksey, Aleksander Savinov, Anna Vutolkina, et al. "Transition Metal Sulfides- and Noble Metal-Based Catalysts for N-Hexadecane Hydroisomerization: A Study of Poisons Tolerance." Catalysts 10, no. 6 (2020): 594. http://dx.doi.org/10.3390/catal10060594.

Full text

Abstract:

Bifunctional catalysts on the base of transition metal sulfides (CoMoS and NiWS) and platinum as noble metal were synthesized via wetness impregnation of freshly synthesized Al2O3-SAPO-11 composites, supported with favorable acidic properties. The physical-chemical properties of the prepared materials were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), low-temperature N2 adsorption and high resolution transmission electron microscopy (HR TEM) methods. Catalytic properties were studied in n-hexadecane isomerization using a fixed-bed flow reactor. The catalytic poisons t

APA, Harvard, Vancouver, ISO, and other styles

5

Ranu, Brindaban C., Tanmay Mandal, Subhash Banerjee та Suvendu S. Dey. "Ionic Liquid Promoted Regio- and Stereo-Selective Thiolysis of Epoxides—A Simple and Green Approach to β-Hydroxy- and β-Keto Sulfides". Australian Journal of Chemistry 60, № 4 (2007): 278. http://dx.doi.org/10.1071/ch06434.

Full text

Abstract:

A variety of epoxides underwent facile cleavage by thiols under the catalysis of 1-methyl-3-butylimidazolium bromide, [bmIm]Br, to produce the corresponding β-hydroxy sulfides with high regio- and stereo-selectivity. On the other hand, a specially designed basic ionic liquid, [bmIm]OH, efficiently catalyzes the thiolysis of α,β-epoxy ketones providing β-keto sulfides through simultaneous retro-aldol cleavages. The reactions are clean, high yielding, and do not require any organic solvent. The catalyst is also recycled.

APA, Harvard, Vancouver, ISO, and other styles

6

Han, Qilin, Yadong Yang, Ruofan Wang, Kai Zhang, Na Liu, and Mei Hong. "Biochar Derived from Agricultural Wastes as a Means of Facilitating the Degradation of Azo Dyes by Sulfides." Catalysts 11, no. 4 (2021): 434. http://dx.doi.org/10.3390/catal11040434.

Full text

Abstract:

Dyes are common contaminants, some of which are teratogenic, carcinogenic, and causative of ecological damage, and dye wastewater often contains toxic sulfides. Biochar has been widely used for the adsorption and catalysis degradation of pollutants, including dyes and sulfides, due to its abundant surface functional groups and large specific surface area. Therefore, the simultaneous treatment of dyes and sulfides with biochar may be a feasible, effective, and novel solution. This study sought to utilize low-cost, environmentally friendly, and widely sourced biochar materials from agricultural

APA, Harvard, Vancouver, ISO, and other styles

7

Zhang, Yimin, Iiu, and Junmin Chen. "Efficient Synthesis of Diaryl Sulfides by Copper-catalysed Coupling of Aryl Halides and Thioacetate in Water." Journal of Chemical Research 37, no. 1 (2013): 19–21. http://dx.doi.org/10.3184/174751912x13545509224571.

Full text

Abstract:

A simple economical, and highly efficient catalytic system for the synthesis of diaryl sulfides by a copper-catalysed coupling of aryl halides and thioacetate in water has been developed. A variety of aryl halides reacted with thioacetate to give the desired products in high yields up to 95%. The present catalysis protocol tolerated a wide range of functional groups, including amino, fluoro, and carboxyl moieties.

APA, Harvard, Vancouver, ISO, and other styles

8

Alvarez-Galvan, M., Jose Campos-Martin, and Jose Fierro. "Transition Metal Phosphides for the Catalytic Hydrodeoxygenation of Waste Oils into Green Diesel." Catalysts 9, no. 3 (2019): 293. http://dx.doi.org/10.3390/catal9030293.

Full text

Abstract:

Recently, catalysts based on transition metal phosphides (TMPs) have attracted increasing interest for their use in hydrodeoxygenation (HDO) processes destined to synthesize biofuels (green or renewable diesel) from waste vegetable oils and fats (known as hydrotreated vegetable oils (HVO)), or from bio-oils. This fossil-free diesel product is produced completely from renewable raw materials with exceptional quality. These efficient HDO catalysts present electronic properties similar to noble metals, are cost-efficient, and are more stable and resistant to the presence of water than other class

APA, Harvard, Vancouver, ISO, and other styles

9

Cibulka, Radek, Lenka Baxová, Hana Dvořáková, et al. "Catalytic effect of alloxazinium and isoalloxazinium salts on oxidation of sulfides with hydrogen peroxide in micellar media." Collection of Czechoslovak Chemical Communications 74, no. 6 (2009): 973–93. http://dx.doi.org/10.1135/cccc2009030.

Full text

Abstract:

Three novel amphiphilic alloxazinium salts were prepared: 3-dodecyl-5-ethyl-7,8,10-trimethylisoalloxazinium perchlorate (1c), 1-dodecyl-5-ethyl-3-methylalloxazinium perchlorate (2b), and 3-dodecyl-5-ethyl-1-methylalloxazinium perchlorate (2c). Their catalytic activity in thioanisole (3) oxidation with hydrogen peroxide was investigated in micelles of sodium dodecylsulfate (SDS), hexadecyltrimethylammonium nitrate (CTANO3) and Brij 35. Reaction rates were strongly dependent on the catalyst structure, on the type of micelles, and on pH value. Alloxazinium salts 2 were more effective catalysts th

APA, Harvard, Vancouver, ISO, and other styles

10

Grutza, Marie-Luise, Ashwene Rajagopal, Carsten Streb, and Philipp Kurz. "Hydrogen evolution catalysis by molybdenum sulfides (MoSx): are thiomolybdate clusters like [Mo3S13]2− suitable active site models?" Sustainable Energy & Fuels 2, no. 9 (2018): 1893–904. http://dx.doi.org/10.1039/c8se00155c.

Full text

Abstract:

Recent results concerning molecular molybdenum sulfido clusters as model systems for heterogeneous hydrogen evolution catalysis by molybdenum sulfides are summarized and also compared to the related chemistry of the active site of the enzyme Mo-nitrogenase.

APA, Harvard, Vancouver, ISO, and other styles

11

Myles, Daniel J. T., M’hamed Chahma, and Robin G. Hicks. "Synthesis and properties of end-capped bis(oligothienyl) sulfides." Canadian Journal of Chemistry 86, no. 10 (2008): 982–91. http://dx.doi.org/10.1139/v08-128.

Full text

Abstract:

The synthesis, and the optical and electrochemical properties, of a series of mesitylthio (MesS-) end-capped bis(oligothienyl) sulfides are presented. The target compounds were synthesized principally by convergent protocols, whereby a series of short thiophene oligomers bearing one terminal mesitylthio (MesS-) substituent were first assembled by metal-catalyzed cross-coupling reactions and then coupled via divalent sulfur through reactions with bis(phenylsulfonyl) sulfide. The spectroscopic and electrochemical features of the bis(oligothienyl) sulfides are qualitatively similar to those of th

APA, Harvard, Vancouver, ISO, and other styles

12

Silveira, Claudio, Francieli Rinaldi, Mariana Bassaco, Rafael Guadagnin, and Teodoro Kaufman. "Synthesis of (Diphenylphosphinoyl)methyl Vinyl Sulfides, Symmetric and Asymmetric Divinyl Sulfides from Bis[(diphenylphosphinoyl)methyl] Sulfide." Synthesis 2011, no. 08 (2011): 1233–42. http://dx.doi.org/10.1055/s-0030-1259969.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Courant, Thibaut, Marine Lombard, Dina V. Boyarskaya, Luc Neuville, and Géraldine Masson. "Tritylium assisted iodine catalysis for the synthesis of unsymmetrical triarylmethanes." Organic & Biomolecular Chemistry 18, no. 33 (2020): 6502–8. http://dx.doi.org/10.1039/d0ob01502d.

Full text

Abstract:

Tritylium-assisted chiral iodine was highly effective catalyst for Friedel–Crafts arylation of diarylmethyl sulfides. The newly developed catalytic process is very mild, efficient, and complementary to other state-of-the-art methods.

APA, Harvard, Vancouver, ISO, and other styles

14

Lee, Garry SH, Christopher I. Ratcliffe, and John A. Ripmeester. "A solid state 31P NMR study of the synthesis of phosphorus sulfides from PCl3 and H2S in microporous materials." Canadian Journal of Chemistry 76, no. 11 (1998): 1660–67. http://dx.doi.org/10.1139/v98-147.

Full text

Abstract:

The interaction and reaction of PCl3 and PCl3-H2S mixtures with the microporous materials Silicalite, ALPO-5, NaY, NaX, and NaA have been investigated, with the intention of producing phosphorus sulfide clusters in the pores. A rich chemistry was observed and monitored by solid state 31P NMR. The presence of P4S3, α-P4S5, β-P4S6, and P4S7 inside the NaY α-cages was demonstrated, as well as a new species that is possibly a third geometric isomer of P4S4 with C3v symmetry. 129Xe NMR showed the exclusion of Xe from the micropores by the phosphorus sulfides. Sulfides lower than P4S7 are small enou

APA, Harvard, Vancouver, ISO, and other styles

15

Cruz-Reyes, J., M. Avalos-Borja, M. H. Farias, and S. Fuentes. "Electron Microscopy in hydrodesulfurization catalysts." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 4 (1990): 260–61. http://dx.doi.org/10.1017/s0424820100174436.

Full text

Abstract:

Applications of transition metal sulfides for hydroprocessing catalysts have included a variety of reactions. It is generally believed that an interaction between the active phase (Mo or W) and the promoter (Co or Ni) takes place. Several models have been suggested to explain the enhanced catalytic activity. The catalytic properties of the unsupported sulfides are dependent on the catalyst preparation methods . In this work we study by electron microscopy two sets of unsupported samples ranging from molybdenum sulfide to cobalt sulfide. The specimens were prepared by the following methods, a s

APA, Harvard, Vancouver, ISO, and other styles

16

Cao, Yi-Ju, Yuan-Yuan Lai, Hong Cao, Xiao-Ning Xing, Xiang Wang, and Wen-Jing Xiao. "A highly efficient carbon–sulfur bond formation reaction via microwave-assisted nucleophilic substitution of thiols to polychloroalkanes without a transition-metal catalyst." Canadian Journal of Chemistry 84, no. 11 (2006): 1529–33. http://dx.doi.org/10.1139/v06-151.

Full text

Abstract:

An efficient carbon–sulfur bond formation reaction has been developed under microwave irradiation. This reaction affords a novel and rapid synthesis of thioacetals and sulfides under mild conditions. This method is particularly noteworthy given its experimental simplicity and high generality, and no transition-metal catalysts were needed under our conditions.Key words: microwave, sulfide, thiol, nucleophilic substitution.

APA, Harvard, Vancouver, ISO, and other styles

17

Fierascu, Ortan, Avramescu, and Fierascu. "Phyto-Nanocatalysts: Green Synthesis, Characterization, and Applications." Molecules 24, no. 19 (2019): 3418. http://dx.doi.org/10.3390/molecules24193418.

Full text

Abstract:

Catalysis represents the cornerstone of chemistry, since catalytic processes are ubiquitous in almost all chemical processes developed for obtaining consumer goods. Nanocatalysis represents nowadays an innovative approach to obtain better properties for the catalysts: stable activity, good selectivity, easy to recover, and the possibility to be reused. Over the last few years, for the obtaining of new catalysts, classical methods—based on potential hazardous reagents—have been replaced with new methods emerged by replacing those reagents with plant extracts obtained in different conditions. Du

APA, Harvard, Vancouver, ISO, and other styles

18

Wu, Lei, Kai Luo, Ling Zhang, Kai Wei та Wen-Chao Yang. "Latent Radical Cleavage of α-Allenylic C–O Bonds: Potassium Persulfate Mediated Thiolation of Allenylphosphine Oxides". Synthesis 50, № 15 (2018): 2990–98. http://dx.doi.org/10.1055/s-0037-1609835.

Full text

Abstract:

A novel potassium persulfate (K2S2O8) mediated thiolation of allenylphosphine oxides with diaryl sulfides is disclosed. Mechanistic studies indicate that K2S2O8 homolyzes the diaryl sulfide to produce a thiyl radical (PhS•), which is followed by C–O bond cleavage of the allenylphosphine oxide under metal-free conditions, affording novel S,P-bifunctionalized butadienes in moderate to excellent yields.

APA, Harvard, Vancouver, ISO, and other styles

19

OKAMOTO, Yasuaki, and Toshinobu IMANAKA. "Structure and Catalysis of Ultradispersed Molybdenum Sulfides." Journal of The Japan Petroleum Institute 36, no. 3 (1993): 182–90. http://dx.doi.org/10.1627/jpi1958.36.182.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Startsev, A. N. "Concerted mechanisms in heterogeneous catalysis by sulfides." Journal of Molecular Catalysis A: Chemical 152, no. 1-2 (2000): 1–13. http://dx.doi.org/10.1016/s1381-1169(99)00423-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Afanasiev, Pavel, and Igor Bezverkhyy. "Ternary transition metals sulfides in hydrotreating catalysis." Applied Catalysis A: General 322 (April 16, 2007): 129–41. http://dx.doi.org/10.1016/j.apcata.2007.01.015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Ranu, Brindaban C., and Tanmay Mandal. "Indium(I) iodide promoted cleavage of dialkyl disulfides Application of the Michael addition of thiolate anions to conjugated carbonyl compounds and regioselective ring opening of epoxides." Canadian Journal of Chemistry 84, no. 5 (2006): 762–70. http://dx.doi.org/10.1139/v06-065.

Full text

Abstract:

Indium(I) iodide promotes cleavage of dialkyl disulfides generating thiolate anions that then undergo facile addition to α,β-unsaturated ketones, aldehydes, carboxylic esters, and nitriles under neutral conditions producing corresponding β-ketosulfides or β-cyanosulfides. This strategy has also been used for the regioselective nucleophilic ring opening of epoxides by thiolate anions in presence of indium(III) chloride producing corresponding β-hydroxyphenyl sulfides. The reactions are in general, very clean, high yielding, and reasonably fast. Thus, simple and convenient procedures for the syn

APA, Harvard, Vancouver, ISO, and other styles

23

Mashkina, A. V., V. R. Grunvald, V. I. Nasteka, B. P. Borodin, V. N. Yakovleva, and L. N. Khairulina. "Decomposition of alkanethiols to dialkyl sulfides and hydrogen sulfide." Reaction Kinetics & Catalysis Letters 41, no. 2 (1990): 357–62. http://dx.doi.org/10.1007/bf02097894.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Sakai, Norio, Hiromu Maeda, and Yohei Ogiwara. "Copper-Catalyzed Three-Component Coupling Reaction of Aryl Iodides, a Disilathiane, and Alkyl Benzoates Leading to a One-Pot Synthesis of Alkyl Aryl Sulfides." Synthesis 51, no. 11 (2019): 2323–30. http://dx.doi.org/10.1055/s-0037-1610869.

Full text

Abstract:

A copper-catalyzed three-component coupling reaction of aryl iodides, hexamethyldisilathiane and alkyl benzoates leading to alkyl aryl sulfides has been demonstrated. A disilathiane acted as both a sulfur source and a promoter of the sulfidation, and the alkyl moiety of the alkyl benzoate was effectively introduced on one side of the sulfide. Moreover, we found that the protocol can be expanded to the preparation of ethyl phenyl selenide with diphenyl diselenide.

APA, Harvard, Vancouver, ISO, and other styles

25

Dawson, Graham J., Christopher G. Frost, Christopher J. Martin, Jonathan M. J. Williams, and Steven J. Coote. "Sulfides tethered to oxazolines: Ligands for enantioselective catalysis." Tetrahedron Letters 34, no. 48 (1993): 7793–96. http://dx.doi.org/10.1016/s0040-4039(00)61568-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Startsev, A. N. "Concept of acid–base catalysis by metal sulfides." Catalysis Today 144, no. 3-4 (2009): 350–57. http://dx.doi.org/10.1016/j.cattod.2009.01.044.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Pratap, Ramendra, and Hideki Yorimitsu. "Palladium-Catalyzed Amination of Aryl Sulfides and Sulfoxides with Azaarylamines of Poor Nucleophilicity." Synthesis 51, no. 13 (2019): 2705–12. http://dx.doi.org/10.1055/s-0037-1611732.

Full text

Abstract:

The amination of aryl sulfides and sulfoxides with azaarylamines is investigated using a palladium-N-heterocyclic carbene (NHC) complex. Because azaarylamines are less nucleophilic than anilines, more reactive diaryl sulfides and sulfoxides are found to be suitable coupling partners that liberate better leaving arenethiolate or arenesulfenate anions, instead of aryl methyl sulfides as reported previously.

APA, Harvard, Vancouver, ISO, and other styles

28

Tan, Khoon-Sin, Alan P. Arnold, and Dallas L. Rabenstein. "Selenium-77 nuclear magnetic resonance studies of selenols, diselenides, and selenenyl sulfides." Canadian Journal of Chemistry 66, no. 1 (1988): 54–60. http://dx.doi.org/10.1139/v88-008.

Full text

Abstract:

77Se and 1H nuclear magnetic resonance spectra have been measured for selenols (RSeH), diselenides (RSeSeR), and selenenyl sulfides (RSeSR′), including selenenyl sulfides formed by reaction of glutathione and penicillamine with selenocystine and related diselenides. Exchange processes strongly affect the 77Se and 1H nuclear magnetic resonance spectra of all three classes of compounds. Sharp, exchange-averaged resonances are observed in the 1H nuclear magnetic resonance spectra of selenols; however, selenol proton exchange causes the 77Se resonances to be extremely broad over the pH range where

APA, Harvard, Vancouver, ISO, and other styles

29

Holland, Herbert L., Carl D. Turner, Peter R. Andreana, and Doan Nguyen. "Article." Canadian Journal of Chemistry 77, no. 4 (1999): 463–71. http://dx.doi.org/10.1139/v99-068.

Full text

Abstract:

The enantioselective oxidation of a series of heterocyclic prochiral sulfides to chiral sulfoxides has been examined using the fungal biocatalysts Helminthosporium species NRRL 4671 and Mortierella isabellina ATCC 42613. Methylthiofuranyl and -thiophenyl substrates gave (S)-configuration products in low to moderate enantiomeric purity on biotransformation with H. species, but pyridyl sulfides with the nitrogen atom located at an optimal distance of 8-10 Å from the sulfur centre gave (S) sulfoxides of high enantiomeric purity. The biotransformation of appropriately substituted benzothiane subst

APA, Harvard, Vancouver, ISO, and other styles

30

Gao, Yuan, Ka Wang, Zixia Lin, et al. "Hydrothermal Synthesis of Polyhedral Nickel Sulfide by Dual Sulfur Source for Highly-Efficient Hydrogen Evolution Catalysis." Nanomaterials 10, no. 11 (2020): 2115. http://dx.doi.org/10.3390/nano10112115.

Full text

Abstract:

Transition metal sulfides are cheap and efficient catalysts for water splitting to produce hydrogen; these compounds have attracted wide attention. Nickel sulfide (NiS2) has been studied in depth because of its simple preparation process, excellent performance and good stability. Here, we propose a modification to the hydrothermal synthesis method for the fabrication of a highly efficient and stable NiS2 electrocatalyst prepared by two different sulfur sources, i.e., sulfur powder and C3H7NaO3S2 (MPS), for application in hydrogen evolution reactions. The obtained NiS2 demonstrated excellent HE

APA, Harvard, Vancouver, ISO, and other styles

31

Suzuki, Kosuke, Jinu Jeong, Kazuya Yamaguchi, and Noritaka Mizuno. "Photoredox catalysis for oxygenation/deoxygenation between sulfides and sulfoxides by visible-light-responsive polyoxometalates." New Journal of Chemistry 40, no. 2 (2016): 1014–21. http://dx.doi.org/10.1039/c5nj01045d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Mamkhegov, Rustam M., Marina M. Murzakanova, Z. V. Dzhandigova, L. S. Murzamuratova, A. T. Tsurova, and S. Yu Khashirova. "Research of the Impact of Catalysts, Temperature and Pressure on Polyphenylenesulfide Synthesis." Key Engineering Materials 816 (August 2019): 14–18. http://dx.doi.org/10.4028/www.scientific.net/kem.816.14.

Full text

Abstract:

The synthesis of polyphenylene sulfide by nucleophilic substitution of 1,4-dichlorobenzene and sodium sulfide nine-water sulfide with varying temperature, pressure and catalysts was investigated. It is shown that lithium oxalate is the most effective among lithium catalysts. The promise of montmorillonite as a catalyst in the synthesis of polyphenylene sulfides was revealed.

APA, Harvard, Vancouver, ISO, and other styles

33

Hillerová, Eva, and Miroslav Zdražil. "Activity and selectivity of carbon-supported transition metal sulfides in simultaneous hydrodearomatization and hydrodesulfurization." Collection of Czechoslovak Chemical Communications 54, no. 10 (1989): 2648–56. http://dx.doi.org/10.1135/cccc19892648.

Full text

Abstract:

Hydrodesulfurization (HDS) and hydrodearomatization (HYD) activities of carbon-supported sulfides of V, Cr, Mn, Fe, Co, Ni, Nb, Mo, Ru, Rh, Pd, W, Re, Ir, and Pt, and of the commercial Co-Mo/Al2O3 catalysts were evaluated. Simultaneous hydrodesulfurization of benzothiophene and hydrogenation of naphthalene to tetralin at pressure of 2 MPa were used as the model reaction. Platinum group metal sulfides and Re sulfide exhibited the highest HDS activity and Pd and Rh sulfides reached the activity of a good commercial Ni-Mo catalyst. Tha catalysts strongly differed in the selectivity of dihydrobenz

APA, Harvard, Vancouver, ISO, and other styles

34

Chen, Liping, Xifei Li, and Yunhua Xu. "Recent advances of polar transition-metal sulfides host materials for advanced lithium–sulfur batteries." Functional Materials Letters 11, no. 06 (2018): 1840010. http://dx.doi.org/10.1142/s1793604718400106.

Full text

Abstract:

Lithium sulfur batteries (LSBs) have been one of the most promising second batteries for energy storage. However, the commercialization of LSBs is still hindered by low sulfur utilization and poor cycling stability, resulting from shuttle effect and low redox kinetics of lithium polysulfides (LiPSs). Significant progress has been made over the years in enhancing the batteries performances and tap density with the transition-metal sulfides as sulfur host or additive in LSBs. In this review, we present the recent advances in the use of various nanostructured transition-metal sulfides applied in

APA, Harvard, Vancouver, ISO, and other styles

35

Lang, Xianjun, Wei Hao, Wan Ru Leow, Shuzhou Li, Jincai Zhao, and Xiaodong Chen. "Tertiary amine mediated aerobic oxidation of sulfides into sulfoxides by visible-light photoredox catalysis on TiO2." Chemical Science 6, no. 8 (2015): 5000–5005. http://dx.doi.org/10.1039/c5sc01813g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Arisawa, Mieko, Takeru Tazawa, Wataru Ichinose, Haruki Kobayashi, and Masahiko Yamaguchi. "Rhodium-Catalyzed Synthesis of Dialkyl(Heteroaryl)Phosphine Sulfides by Phosphinylation of Heteroaryl Sulfides." Advanced Synthesis & Catalysis 360, no. 18 (2018): 3488–91. http://dx.doi.org/10.1002/adsc.201800630.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Kundu, Nitya G., and Bidisha Nandi. "Depropargylation under palladium–copper catalysis: synthesis of diaryl sulfides." Tetrahedron 57, no. 27 (2001): 5885–95. http://dx.doi.org/10.1016/s0040-4020(01)00527-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

PRINS, R. "ChemInform Abstract: Heterogeneous Catalysis with Zeolites, Sulfides, and Metals." ChemInform 27, no. 36 (2010): no. http://dx.doi.org/10.1002/chin.199636256.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Ho, Teh C. "Hydroprocessing catalysis on metal sulfides prepared from molecular complexes." Catalysis Today 130, no. 1 (2008): 206–20. http://dx.doi.org/10.1016/j.cattod.2007.06.076.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Golchin Hosseini, Habib, and Sadegh Rostamnia. "Post-synthetically modified SBA-15 with NH2-coordinately immobilized iron-oxine: SBA-15/NH2-FeQ3 as a Fenton-like hybrid catalyst for the selective oxidation of organic sulfides." New Journal of Chemistry 42, no. 1 (2018): 619–27. http://dx.doi.org/10.1039/c7nj02742g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Thompson, Alison, Jose R. Garabatos-Perera, and H. Martin Gillis. "Asymmetric oxidation of 2-(arylsulfenyl)pyrroles." Canadian Journal of Chemistry 86, no. 7 (2008): 676–81. http://dx.doi.org/10.1139/v08-054.

Full text

Abstract:

The asymmetric oxidation of prochiral 2-(arylsulfenyl)pyrroles has been investigated. A marked electronic effect within the substrate significantly influenced the degree of enantioselectivity obtained, with very high enantio selectivity being obtained for 5-(nitrobenzensulfenyl)pyrrole-2-carboxaldehydes using Ti(i-PrO)4/(+)-(R,R)-DET/H2O/CHP. This result bodes well for optimizing the asymmetric oxidation of other diaryl sulfides, substrates that have previously given only low enantiomeric excesses.Key words: asymmetric oxidation, sulfide, sulfoxide, pyrrole.

APA, Harvard, Vancouver, ISO, and other styles

42

Nugrahaningtyas, Khoirina Dwi, Wega Trisunaryanti, Triyono Triyono, et al. "PREPARATION AND CHARACTERIZATION THE NON-SULFIDED METAL CATALYST: Ni/USY and NiMo/USY." Indonesian Journal of Chemistry 9, no. 2 (2010): 177–83. http://dx.doi.org/10.22146/ijc.21526.

Full text

Abstract:

The two-new catalysts had been prepared by using the impregnation method according to Nugrahaningtyas [6] and Li [4]. One catalyst is of Nickel (Ni), supported on Ultra Stable Zeolite Y (USY), whereas the other one is NiMo supported on same supporting agent. These new catalysts are expected to be more effective when applied on the hydrotreatment reaction in standpoint of its capabilities on removing the unwanted-heteroatom. Characterization those two types of catalysts then carried out by using the criteria of acidity, porosity and, metal content. The result shows that these non-sulfide cataly

APA, Harvard, Vancouver, ISO, and other styles

43

Khakyzadeh, Vahid, Abed Rostami, Hojat Veisi, et al. "Direct C–S bond formation via C–O bond activation of phenols in a crossover Pd/Cu dual-metal catalysis system." Organic & Biomolecular Chemistry 17, no. 18 (2019): 4491–97. http://dx.doi.org/10.1039/c9ob00313d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Khodaei, Mohammad Mehdi, Kiumars Bahrami, and Mohammad Khedri. "The efficient and chemoselective MoO3-catalyzed oxidation of sulfides to sulfoxides and sulfones with H2O2." Canadian Journal of Chemistry 85, no. 1 (2007): 7–11. http://dx.doi.org/10.1139/v06-177.

Full text

Abstract:

Hydrogen peroxide together with MoO3 as catalyst can efficiently and chemoselectivity oxidize sulfides to sulfoxides and sulfones in the presence of other oxidized functional groups in ethanol at 50 °C in short reaction times.Key words: oxidation, sulfides, sulfoxides, sulfones, H2O2–MoO3 system.

APA, Harvard, Vancouver, ISO, and other styles

45

Xu, Yijie, Afriyanti Sumboja, Yun Zong, and Jawwad A. Darr. "Bifunctionally active nanosized spinel cobalt nickel sulfides for sustainable secondary zinc–air batteries: examining the effects of compositional tuning on OER and ORR activity." Catalysis Science & Technology 10, no. 7 (2020): 2173–82. http://dx.doi.org/10.1039/c9cy02185j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Mojarrad, Aida G., and Saeed Zakavi. "Simple low cost porphyrinic photosensitizers for large scale chemoselective oxidation of sulfides to sulfoxides under green conditions: targeted protonation of porphyrins." Catalysis Science & Technology 8, no. 3 (2018): 768–81. http://dx.doi.org/10.1039/c7cy02308a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Jin, Huile, Yuewu Zhao, Liyun Chen, Aili Liu, Shun Wang, and Weizhong Jiang. "One-step synthesis of metal sulfide/tellurium composites with distinct microstructures." Canadian Journal of Chemistry 93, no. 10 (2015): 1076–82. http://dx.doi.org/10.1139/cjc-2015-0117.

Full text

Abstract:

Microsphere flower- and mushroom-shaped metal sulfide/tellurium composites were synthesized through a one-step and template-free approach in which the simultaneous formation of tellurium and NiS (or CdS) leads to well-dispersed composites. The development of such distinct microstructures has been systematically investigated as a function of reaction temperature, concentrations of the starting reagents, and reaction time. Characterizations with scanning and transmitting electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and thermal gravimetric methods i

APA, Harvard, Vancouver, ISO, and other styles

48

Wang, Xian-Liang, Jin-Xiang Chen, Xue-Shun Jia та Liang Yin. "Synthesis of α,β-Unsaturated Phosphine Sulfides". Synthesis 52, № 01 (2019): 141–49. http://dx.doi.org/10.1055/s-0039-1690685.

Full text

Abstract:

α,β-Unsaturated phosphine sulfides may exhibit different reactivity from α,β-unsaturated phosphine oxides toward nucleophilic addition and thus may find new applications in copper(I)-catalyzed asymmetric reactions. Herein, various α,β-unsaturated phosphine sulfides were prepared in moderate to excellent yields from the parent α,β-unsaturated phosphine oxides with Lawesson’s reagent. The reaction enjoys a broad substrate scope and tolerates a variety of functional groups.

APA, Harvard, Vancouver, ISO, and other styles

49

Chen, Guojian, Yadong Zhang, Ke Liu, et al. "In situ construction of phenanthroline-based cationic radical porous hybrid polymers for metal-free heterogeneous catalysis." Journal of Materials Chemistry A 9, no. 12 (2021): 7556–65. http://dx.doi.org/10.1039/d0ta12018a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Liu, Junhua, Gui Liu, Cheng Liu, Wenxiu Li, and Fang Wang. "Nano-sized mesoporous sodium iron hydroxyphosphate supported gold: an effective catalyst for the oxidation of sulfides." Catalysis Science & Technology 6, no. 7 (2016): 2055–59. http://dx.doi.org/10.1039/c5cy02004b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!