Results 41 to 50 of about 15,108 (284)

Bicyclo[2.1.1]hexanes via Intramolecular Formal (3+2)-Cycloaddition

open access: yes
We report a synthesis of bicyclo[2.1.1]hexanes via an intramolecular formal (3+2) cycloaddition of allylated cyclopropanes bearing a 4-nitrobenzimine substituent. Both activated and unactivated alkenes are tolerated in the transformation.
Tatunashvili, Elene   +4 more
core   +2 more sources

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf   +4 more
wiley   +1 more source

1,3,4-Tri-O-acetyl-2-N-(trifluoroacetyl)-β-l-fucose

open access: yesActa Crystallographica Section E, 2014
The title compound, C14H18F3NO8, was produced through conjugation of 1,3,4-tri-O-acetyl-2-azidodeoxy-α,β-l-fucose with trifluoroacetyl chloride in the presence of bis(diphenylphosphino)ethane in tetrahydrofuran at room temperature.
David C. McCutcheon   +2 more
doaj   +1 more source

High yield of renewable hexanes by direct hydrolysis-hydrodeoxygenation of cellulose in an aqueous phase catalytic system

open access: yes, 2015
In aqueous phosphoric acid, cellulose was efficiently converted into hexanes using a Ru/C catalyst combined with layered compounds or silica-alumina materials.
Chen, Lungang   +6 more
core   +1 more source

Digitizing the Filtration Interface: A Smart, Modular Janus Wood Platform for Self‐Reporting Oil/Water Remediation

open access: yesAdvanced Functional Materials, EarlyView.
This work developed a smart Janus wood membrane integrating asymmetric wettability with built‐in electrical sensing for oil‐water separation. The membrane achieved > 99.5% separation efficiency and high flux by leveraging wood's natural anisotropic pore structure.
Kaiwen Chen   +10 more
wiley   +1 more source

Synthesis and crystal structure of (E)-N-[(2-bromophenyl)methylidene]-3,5-bis(trifluoromethyl)aniline

open access: yesActa Crystallographica Section E: Crystallographic Communications
The title compound C15H8BrF6N, was prepared by a condensation reaction of 2-bromobenzaldehyde and 3,5-bis(trifluoromethyl)aniline in the presence of anhydrous magnesium sulfate.
Nicholas B. Kingsley   +2 more
doaj   +1 more source

Effect of feed supplementation with seaweed wracks on performance, muscle lipid composition, antioxidant status, digestive enzyme activities, and plasma biochemistry of gilthead seabream (Sparus aurata) juveniles

open access: yesAquaculture Reports, 2023
Macroalgal wracks are frequently considered as waste products. However, macroalgae are a rich source of protein and bioactive compounds with antioxidant and antimicrobial activities whose inclusion in aquafeeds is receiving growing attention.
Ana Galindo   +9 more
doaj   +1 more source

Second-Chance Rearrangement Route to Novel 5(6)-Syn,anti-difunctional 2-Azabicyclo[2.1.1]hexanes

open access: yes, 2016
The first syntheses of 5,6-difunctionalized-2-azabicyclo[2.1.1]hexanes containing syn-hydroxy and syn-fluoro substituents have been effected in a stereocontrolled manner.
Grant R. Krow (1266600)   +3 more
core   +1 more source

Powering Nanocrystal‐Based Heat Engines With Light‐Emitting Metasurfaces That Influence Their Temperature

open access: yesAdvanced Functional Materials, EarlyView.
Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk   +7 more
wiley   +1 more source

Catalytic asymmetric synthesis of diazabicyclo[3.1.0]hexanes by 1,3-dipolar cycloaddition of azomethine ylides with azirines [PDF]

open access: yes, 2021
Substituted 1,3-diazabicyclo[3.1.0]hexanes with two contiguous quaternary stereocentres are readily prepared by catalytic asymmetric [3+2] cycloaddition of α-substituted iminoesters with azirines.
Díaz-Tendero Victoria, Sergio   +3 more
core   +1 more source

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