Results 21 to 30 of about 17,437 (312)

Desulfurization of Dibenzothiophene and Oxidized Dibenzothiophene Ring Systems

open access: yesMolecules, 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   +2 more
doaj   +1 more source

Deep eutectic solvent mediated controlled and selective oxidation of organic sulfides and hydroxylation of arylboronic acids

open access: yesCurrent Research in Green and Sustainable Chemistry, 2021
A mild and efficient protocol has been developed for the controlled oxidation of wide variety of organic sulfides to corresponding sulfoxides using deep eutectic solvent (DES) as catalyst and hydrogen peroxide as oxidant under ambient condition.
Apurba Dutta   +4 more
doaj   +1 more source

Metal-organic frameworks as selective or chiral oxidation catalysts [PDF]

open access: yes, 2014
Since the discovery of Metal Organic Frameworks (MOFs) in the early 1990s, the amount of new structures has grown exponentially. A MOF typically consists of inorganic nodes that are connected by organic linkers to form crystalline, highly porous ...
Leus, Karen   +2 more
core   +1 more source

Sulfur-Containing Monoterpenoids as Potential Antithrombotic Drugs: Research in the Molecular Mechanism of Coagulation Activity Using Pinanyl Sulfoxide as an Example

open access: yesFrontiers 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   +13 more
doaj   +1 more source

Sulfur analysis of Bolu-Mengen lignite before and after microbiological treatment using reductive pyrolysis and gas chromatography/mass spectrometry [PDF]

open access: yes, 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.   +27 more
core   +1 more source

Flavoprotein monooxygenases for oxidative biocatalysis: recombinant expression in microbial hosts and applications [PDF]

open access: yes, 2014
External flavoprotein monooxygenases comprise a group of flavin-dependent oxidoreductases that catalyze the insertion of one atom of molecular oxygen into an organic substrate and the second atom is reduced to water. These enzymes are involved in a great
Bianchi, Dario Alejandro   +2 more
core   +2 more sources

Characterization of Sulfides in Atmospheric Residue Fractions Using Selective Oxidation Followed by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

open access: yesEnergies, 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   +3 more
doaj   +1 more source

Homoallylglycine residues are superior precursors to orthogonally modified thioether containing polypeptides. [PDF]

open access: yes, 2018
Homoallylglycine N-carboxyanhydride, Hag NCA, monomers were synthesized and used to prepare polypeptides containing Hag segments with controllable lengths of up to 245 repeats.
Deming, Timothy J   +2 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]

open access: yesProceedings 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   +3 more
doaj   +1 more source

Synthesis of cyclic alpha-diazo-beta-keto sulfoxides in batch and continuous flow [PDF]

open access: yes, 2017
Diazo transfer to beta–keto sulfoxides to form stable isolable alpha-diazo-beta-keto sulfoxides has been achieved for the first time. Both monocyclic and benzofused ketone derived beta-keto sulfoxides were successfully explored as substrates for diazo ...
Buckley, Naomi M.   +5 more
core   +1 more source

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