Results 41 to 50 of about 64,302 (295)

Direct Electrospray Ionization Mass Spectrometry for Monitoring of Photochemical Oxidation Reaction of Benzaldehyde in Face Mask [PDF]

open access: yesZhipu Xuebao
Face masks are usually used to prevent inhalable particles and microdroplets that may enter the nose and mouth. However, a lot of organic contaminants can be found in materials, manufacturing processes, or packaging of face mask, so there is a potential ...
YI Man, DONG Song-bin, HU Bin
doaj   +1 more source

Obligately aerobic human gut microbe expresses an oxygen resistant tungsten-containing oxidoreductase for detoxifying gut aldehydes

open access: yesFrontiers in Microbiology, 2022
Brevibacillus massiliensis strain phR is an obligately aerobic microbe that was isolated from human feces. Here, we show that it readily takes up tungsten (W), a metal previously associated only with anaerobes.
Michael P. Thorgersen   +7 more
doaj   +1 more source

First-principle investigation on catalytic hydrogenation of benzaldehyde over Pt-group metals

open access: yes, 2020
Understanding the hydrogenation of organic compounds in the aqueous phase has always been fundamentally important for improving carbon neutral pathways to fuels and value-added chemicals.
Simuck F. Yuk   +5 more
semanticscholar   +1 more source

Time‐restricted feeding prior to Mycobacterium tuberculosis infection reduces tissue CD4+ T cells with limited impact on bacterial clearance

open access: yesFEBS Open Bio, EarlyView.
Time‐restricted feeding (TRF) in mice increased liver fatty acid oxidation and decreased fatty acid biosynthesis. These alterations persisted when TRF was discontinued and the host was infected with Mycobacterium tuberculosis. Pre‐exposure to TRF did not alter tissue (lung and spleen) mycobacterial burden but significantly reduced CD3+ T cells in lungs
Ashish Gupta   +7 more
wiley   +1 more source

Programmable Solid‐Electrolyte Interfaces for Efficient and Selective Electrochemical Hydrogenations

open access: yesAngewandte Chemie, EarlyView.
Poly(ionic liquid) binders are shown to actively control the electrode microenvironment, strongly enhancing electrochemical hydrogenation compared to traditional binders. The work redefines the binder as an active component of catalytic electrode design, reshaping local potential gradients and interfacial ion distribution to modulate adsorbed H ...
Anastasios Orestis Grammenos   +9 more
wiley   +2 more sources

Selective oxidation of benzyl alcohol to benzaldehyde over Ce-modified algal-based biochar

open access: yes能源环境保护
As an important chemical intermediate, benzaldehyde is widely used in medicine and fine chemicals. To address pollution in traditional benzaldehyde synthesis, preparing benzaldehyde through the catalytic oxidation of benzyl alcohol holds significant ...
Ying HE   +5 more
doaj   +1 more source

Crystal structure and Hirshfeld surface analysis of 3-(hydroxymethyl)-3-methyl-2,6-diphenylpiperidin-4-one

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2022
A new synthesis of the title compound, C19H21NO2, was developed with good yield and purity using the reaction of 4-hydroxy-3-methyl-2-butanone, benzaldehyde and ammonium acetate in glacial acetic acid as a solvent.
Mustafa Kemal Gümüş   +4 more
doaj   +1 more source

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

open access: yesAdvanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez   +9 more
wiley   +1 more source

Catalytic Enantioselective Multicomponent Reactions of Sulfoxonium Ylides Enabled by a Formal Rearrangement—A Versatile Entry to Enantioenriched α‐Sulfanyl Carbonyl Compounds

open access: yesAngewandte Chemie, EarlyView.
A catalytic network embedding a formal rearrangement enables the first catalytic enantioselective multicomponent reaction (MCR) of sulfur ylides. In the presence of a bulky chiral phosphoric acid, the reaction combines sulfoxonium ylides, aldehydes and thiols, and affords synthetically versatile β‐hydroxy‐α‐sulfanyl carbonyl compounds in ...
Nicolò Santarelli   +10 more
wiley   +2 more sources

Single Crystals of Perylene Diimide‐Based Two‐Dimensional Covalent Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
Synthesizing extended crystals of two‐dimensional covalent organic frameworks (2D COFs) has remained a major challenge. Here, we report a high‐temperature double‐modulator strategy that provides access to new perylene diimide (PDI)‐based COFs with crystal sizes of up to 50 µm.
Ling Zhang   +12 more
wiley   +1 more source

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