Results 11 to 20 of about 3,282 (84)

One-Pot Transition-Metal-Free Methods for the Synthesis of All Three Bonds of the Alkyne's Triple Bond. [PDF]

open access: yesChemistry
One‐pot transition‐metal‐free methods for the synthesis of all three bonds of the alkyne's triple bond are reviewed. After analysis of several named reactions and discussion of improvements, recent advances in the synthesis of alkynes are discussed. Each section contains a proposed reaction mechanism and analysis of the strengths and weaknesses of the ...
Kim E   +4 more
europepmc   +2 more sources

Alkoxysulfonium Salts Unlock Access to New Aryl Sulfonium Salts for Cross‐Coupling

open access: yesAngewandte Chemie International Edition, EarlyView.
Hard‐to‐access (hetero)aryl sulfonium salts are prepared using stable methoxysulfonium salts in combination with the magnesiation of (hetero)aryl bromides. The approach allows access to aryl sulfonium salts bearing electron‐deficient (hetero)aryl rings, or electron‐rich aryl motifs in which the sulfonium motif resides at an alternative position on the ...
Rachel E. Brown   +4 more
wiley   +1 more source

Enantioselective Synthesis of Sulfinamidines via Asymmetric Rhodium–Catalyzed Imidation of Sulfenamides

open access: yesChemistryEurope, EarlyView.
In this work, a catalytic enantioselective imidation approach is presented for the preparation of enantioenriched sulfinamidines from sulfenamides, employing a chiral dirhodium(II) tetracarboxylate catalyst. This method enables the imidation of N,N‐bisalkyl sulfenamides in yields of up to 98% and enantiomeric ratios up to 98:2, with a catalyst loading ...
Michael Andresini   +7 more
wiley   +1 more source

Synthesis and Biological Profile of Substituted Pyrrolidinyl Carboxamides for Acyl‐ACP Thioesterase Inhibition

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
The work outlined herein covers a series of novel herbicidal lead structures that possess a pyrrolidinyl pyrazole carboxamide scaffold as a key structural feature, carrying further substituted benzyl side chains. Based on scaffold hopping approaches from known fungicidal and herbicidal compounds and utilizing an optimized synthetic approach, a broader ...
Elisabeth Asmus   +24 more
wiley   +1 more source

Enhanced Degradation of Vinyl Copolymers Based on Lipoic Acid

open access: yesJournal of Polymer Science, Volume 63, Issue 6, Page 1345-1351, 15 March 2025.
ABSTRACT The introduction of degradable units into the backbone of commodity vinyl polymers represents a major opportunity to address the societal challenge of plastic waste and polymer recycling. Previously, we reported the facile copolymerization of α‐lipoic acid derivatives containing 1,2‐dithiolane rings with vinyl monomers leading to the ...
Yoichi Okayama   +7 more
wiley   +1 more source

6‐Methylsulfinylhexyl isothiocyanate activates carbonic anhydrase‐dependent HCO3−/H+/Na+/Ca2+ transport via SLC4As–NHE–NCX–PMCA axis in odontoblasts

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend 6‐Methylsulfinylhexyl isothiocyanate (6‐MSITC, hexaraphane), a wasabi sulfinyl compound, activates intracellular carbonic anhydrase (CA)‐mediated sequential HCO3−, Na+, H+ and Ca2+ transport through an activation axis involving HCO3−‐transporting solute carrier family 4 (SLC4As), the Na+–H+ exchanger (NHE), the Na+–Ca2+ exchanger
Yoshiaki Furusawa   +9 more
wiley   +1 more source

Synthesis of Sulfur Enriched Cyclohexenes via the Tungsten‐Promoted Dearomatization of a Phenyl Sulfone

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 9, 2 March 2026.
A method for synthesizing sulfur‐substituted cyclohexenes is reportedthat leverages the η2‐coordination of a phenyl sulfone to [WTp(NO)(PMe3)] (Tp = trispyrazolylborate). Three sequential protonation and nucleophilic additions to the bound arene, followed by oxidative decomplexation, affords functionalized cyclohexenes bearing sp3‐ and sulfur‐enriched ...
Daniel J. Siela   +3 more
wiley   +1 more source

Top‐Down Fabricated Wood‐Derived Pressure and Strain Sensors: A Review

open access: yesAdvanced Science, Volume 13, Issue 15, 13 March 2026.
This review focuses on wood‐derived pressure/strain sensors fabricated via top‐down strategies. It analyzes wood's structural composition, examines processing techniques, discusses sensor types and sensing mechanisms, and reviews existing research. The article concludes with future directions for enhancing performance and scalability.
Yi Ren   +8 more
wiley   +1 more source

Additives for Aluminum‐Air Batteries: A Review

open access: yesSmall, Volume 22, Issue 16, 17 March 2026.
The role of electrolyte additives in Al–air batteries is investigated by focusing on their capacity to moderate Al corrosion rates, inhibit self‐discharge, and prevent surface barrier formation. Additives present in organic, inorganic, and hybrid categories, which regulate the Al–electrolyte interface by forming protective films on the Al surface ...
Hajar Mahmoudi   +6 more
wiley   +1 more source

Expanding the Toolbox for Hydrogen Atom Transfer Catalysis: Sulfides as Structurally Diverse Catalysts Under Photoredox Conditions

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 4, 17 February 2026.
A new class of sulfide‐based catalysts for visible‐light‐driven hydrogen‐atom transfer (HAT) are reported. Single‐electron oxidation of alkyl aryl sulfides generates radical cations as the active HAT species whose catalytic activities are boosted by installing the 2‐thiazolyl structure.
Tetsuya Sengoku   +4 more
wiley   +1 more source

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