Results 1 to 10 of about 33,864 (335)

Synthesis of ω-Methylsulfinyl- and ω-Methylsulfonylalkyl Glucosinolates [PDF]

open access: yesMolecules
General pathways were devised to synthesize ω-methylsulfinyl- and ω-methylsulfonylalkyl glucosinolates, which represent an important class of structurally homogeneous plant specialized metabolites.
Manolis Mavratzotis   +4 more
doaj   +2 more sources

New Sulfenate Sources for Double Pallado-Catalyzed Cross-Coupling Reaction: Application in Symmetrical Biarylsulfoxide Synthesis, and Evidence of TADF Properties [PDF]

open access: yesMolecules
Tetrahydro-4H-thiopyran-4-one 1-oxide 1 and sulfinyl-di-tert-butylpropionate 2 were reported as sources of bis-sulfenate anion and applied in a double pallado-catalyzed cross-coupling reaction for the synthesis of symmetrical biarylsulfoxides, tolerating
Valentin Magné   +4 more
doaj   +2 more sources

Molybdatophosphoric acid as an efficient catalyst for the catalytic and chemoselective oxidation of sulfides to sulfoxides using urea hydrogen peroxide as a commercially available oxidant [PDF]

open access: yesJournal of the Serbian Chemical Society, 2010
An efficient procedure for the chemoselective oxidation of alkyl (aryl) sulfides to the corresponding sulfoxides using urea hydrogen peroxide (UHP) in the presence of a catalytic amount of molybdatophosphoric acid at room temperature is described.
ALIREZA HASANINEJAD   +3 more
doaj   +3 more sources

Bifunctional Squaramide‐Catalyzed Oxidative Kinetic Resolution: Simultaneous Access to Axially Chiral Thioether and Sulfoxide [PDF]

open access: yesAdvanced Science
Axially chiral thioethers and sulfoxides emerge as two pivotal classes of ligands and organocatalysts, which have remarkable features in the stereoinduction of various asymmetric transformations. However, the lack of easy methods to access such molecules
Wei Wen   +4 more
doaj   +2 more sources

Fe3O4@SiO2@CSH+VO3 − as a novel recyclable heterogeneous catalyst with core–shell structure for oxidation of sulfides [PDF]

open access: yesScientific Reports
Iron nanoparticles, with low toxicity and many active sites, are among the materials that not only reduce waste along with green chemistry but also increase the separation power and recover the catalyst from the reaction environment. In this study, first,
Ula Zuhair Ismael Al-Zubaidi   +2 more
doaj   +2 more sources

Sulfoxide Reductases and Applications in Biocatalytic Preparation of Chiral Sulfoxides: A Mini-Review

open access: yesFrontiers in Chemistry, 2021
Chiral sulfoxides are valuable organosulfur compounds that have been widely used in medicinal and organic synthesis. Biocatalytic approaches for preparing chiral sulfoxides were developed in the past few years, mainly through asymmetric oxidation of ...
Tao Peng   +4 more
doaj   +1 more source

Research progress on metabolic pathway of S-alk(en)ylcysteine sulfoxides in Allium

open access: yesGuangxi Zhiwu, 2023
Allium L. is one of the largest genera of angiosperms, including garlic, onion, green Chinese onion, Chinese chive and other important vegetable crops with unique spicy flavor.
Huamin ZHANG   +4 more
doaj   +1 more source

Fritsch–Buttenberg–Wiechell rearrangement of magnesium alkylidene carbenoids leading to the formation of alkynes

open access: yesBeilstein Journal of Organic Chemistry, 2021
A series of 1-heteroatom-substituted vinyl p-tolyl sulfoxides were prepared and treated with organometallic reagents to evaluate which combination of sulfoxides and organometallic reagents yielded alkynes the most efficiently.
Tsutomu Kimura   +3 more
doaj   +1 more source

Advance in the Synthesis of Sulfoxides and Sulfinamides from β-Sulfinyl Esters

open access: yesOrganics, 2023
Sulfoxides and sulfinamides play important roles in the pharmaceutical industry, organic synthesis and fine chemicals. This review will demonstrate that, under catalysis by transition metals, β-sulfinyl esters, as nucleophilic reagents, react with a ...
Xianjie Yin, Qiaoling Zhang, Qingle Zeng
doaj   +1 more source

Synthesis and Preliminary Screening of the Biological Activity of Sulindac Sulfoximine Derivatives

open access: yesApplied Sciences, 2023
Sulindac is a well-known anti-inflammatory agent, sometimes employed as an adjuvant in antitumor therapy. Due to the recent interest in sulfoximine for its potential chemotherapeutics, we decided to transform sulindac and its methyl ester into the ...
Cosimo Cardellicchio   +6 more
doaj   +1 more source

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