Results 41 to 50 of about 35,246 (344)
Sulfoxides. V. The Ionization of Sulfoxides in Sulfuric Acid [PDF]
Bulletin of the Chemical Society of Japan, 1965 Abstract Contrary to the earlier claim that diphenyl sulfoxide ionizes in nearly 100% sulfuric acid to give a “diphenyl sulfidonium” ion, which can then return to the original sulfoxide when quenched with water, the 18O tracer experiment and a new set of cryoscopic determinations of a few sulfoxides have revealed that the dissociation of
Shigeru Oae +2 more
openaire +2 more sources
Transient Sulfenic Acids in the Synthesis of Biologically Relevant Products
Molecules, 2018 Sulfenic acids as small molecules are too unstable to be isolated and their transient nature offers the possibility to involve them in concerted processes that lead to the obtainment of functional groups such as sulfoxides, sulfones, and disulfides.
Anna Barattucci +4 more
doaj +1 more source
4-Hydroxyacetophenone monooxygenase from Pseudomonas fluorescens ACB as an oxidative biocatalyst in the synthesis of optically active sulfoxides [PDF]
, 2006 Recombinant 4-hydroxyacetophenone monooxygenase (HAPMO) from Pseudomonas fluorescens ACB has been tested as a catalyst in sulfoxidation reactions on a set of aromatic sulfides.
Carrea, Giacomo +4 more
core +2 more sources
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
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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 +2 more
core +1 more source
Beilstein Journal of Organic Chemistry, 2017 A practical method for the selective and controlled oxidation of thioglycosides to corresponding glycosyl sulfoxides and sulfones is reported using urea–hydrogen peroxide (UHP). A wide range of glycosyl sulfoxides are selectively achieved using 1.5 equiv
Adesh Kumar Singh +4 more
doaj +1 more source
A Novel, Facile and Selective Synthesis of Sulfoxides Catalyzed by CuFe2O4/PEO-SO3H as a Reusable Heterogeneous Nanocatalyst [PDF]
Nanochemistry ResearchIn 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 +2 more
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Microwave-assisted photooxidation of sulfoxides
Scientific Reports, 2021 We demonstrated microwave-assisted photooxidation of sulfoxides to the corresponding sulfones using ethynylbenzene as a photosensitizer. Efficiency of the photooxidation was higher under microwave irradiation than under conventional thermal heating ...
Yuta Matsukawa +5 more
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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 +3 more
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Synthesis of Sulfoximines and Sulfonimidamides Using Hypervalent Iodine Mediated NH Transfer
Molecules, 2023 The development of NH transfer reactions using hypervalent iodine and simple sources of ammonia has facilitated the synthesis of sulfoximines and sulfonimidamides for applications across the chemical sciences.
Renzo Luisi, James A. Bull
doaj +1 more source