Results 61 to 70 of about 32,232 (288)

Activation and Stabilization Strategies of Aluminum Metal Anode Toward High Performance Aqueous Al Metal Batteries

open access: yesAdvanced Materials, EarlyView.
This review spotlights the critical challenges faced by aluminum metal anodes and aqueous electrolytes. Recent progress on activating and stabilizing Al metal anode is summarized and discussed in terms of two aspects, including anode engineering and electrolyte optimization. Finally, some revelatory insights and possible strategies are provided for the
Huaming Yu   +7 more
wiley   +1 more source

Recent Progress in Organic TADF Emitters Containing Heavy Atoms

open access: yesAdvanced Optical Materials, EarlyView.
In this review, progress on heavy atom use in organic TADF emitters to produce internal and external heavy atom effects is summarized. Impacts on molecular geometry, TADF efficiency, and performance in OLEDs are discussed. An outlook on the challenges and opportunities of heavy atom incorporation is provided.
Seja A. Elgadi   +2 more
wiley   +1 more source

Dual Lewis Acid Promoted/Visible Light Driven Preparation of Aryl Diazenyl Oxazoles from Isocyanoacetamides and Arylazo Sulfones

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 5, March 4, 2025.
Abstract While arylazo sulfones have been widely applied as arylating agents, their exploitation for diazenylation reactions has been previously limited to electron‐rich alkenes such as styrenes and silyl enol ethers. Herein we optimized a synthetic one‐pot protocol to access oxazolyl azo compounds via a selective domino ring‐closing/aryldiazenylation ...
Enzo Delalande   +5 more
wiley   +1 more source

Effect of Chemical Structure on the Performance of Sulfonated Poly(aryl ether sulfone) Composite Nanofiltration Membranes

open access: yesMembranes, 2019
This paper discusses the effect of the chemical structure of sulfonated poly(aryl ether sulfone) on the performance of composite nanofiltration membranes.
Shouhai Zhang   +5 more
doaj   +1 more source

Visible Light‐Promoted Esterification of Carboxylic Acids via Photoacid Generation Catalysis

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 13, July 23, 2025.
A novel, environmentally friendly photochemical method for the esterification of carboxylic acids with alcohols using arylazo sulfones as photoacid generators was developed. This approach avoids traditional acidic catalysts, purification did not require chromatography and the method proved effective under continuous flow conditions for enhanced ...
Valentina Benazzi   +7 more
wiley   +1 more source

Regio‐, Stereoselective, Aerobic and Metal‐Free Synthesis of Z‐Vinyl Sulfides: One‐Pot Hydroiodination of Internal Alkynes and in situ Sulfenylations

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 13, July 23, 2025.
Abstract A novel, metal‐free, air‐ and moisture‐compatible one‐pot tandem protocol for the regio‐ and stereoselective synthesis of Z‐vinyl sulfides (achieving yields up to 99%), is reported. This straightforward and efficient process combines the selective hydroiodination of internal alkynes, promoted by the eutectic mixture choline iodide (ChI)/p‐TsOH
Gloria Morís‐Menéndez   +5 more
wiley   +1 more source

Sulfur source-mediated transcriptional regulation of the rhlABC genes involved in biosurfactants production by Pseudomonas sp. strain AK6U

open access: yesFrontiers in Microbiology, 2014
Despite the nutritional significance of sulfur, its influence on biosurfactants production has not been sufficiently studied. We investigated the expression of key biosurfactants production genes, rhlABC, in cultures of Pseudomonas sp.
Wael eIsmail   +3 more
doaj   +1 more source

Photocatalytic Polyene Cyclization to Cyclopentyl Thioethers with Consecutive Quaternary Centers in Fluorinated Alcohols

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
A photocatalytic strategy enables efficient cyclization of polyenes to cyclopentyl thioethers with consecutive all‐carbon quaternary centers. Using 2,4,6‐triphenylpyrylium tetrafluoroborate in 1,1,1,3,3,3‐hexafluoroisopropanol, the method proceeds via a thiyl radical mechanism, offering high yields and good diastereoselectivities.
Nicolás Rascón   +2 more
wiley   +1 more source

eAmidation: An Electrochemical Amidation of Aldehydes via the Oxidation of N‐Aryl Hydrazones

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
The indirect electrochemical oxidation of N‐aryl hydrazones offers an efficient approach to access amides from aldehydes and amines. The AZADO‐mediated reaction enables the selective synthesis of a broad range of valuable amides using readily available aldehydes.
Luke Chen   +2 more
wiley   +1 more source

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