Results 101 to 110 of about 12,869 (241)

Advances in Unconventional and Sustainable Synthetic Approaches to Benzopyran Scaffolds

The Chemical Record, EarlyView.
This review provides a comprehensive and critical analysis of low‐impact synthetic methodologies reported in the last 8 years (2018–2026) for the construction of benzopyran‐derived scaffolds, such as coumarins, flavones, chromones, chromenes, and chromanes. The benzopyran scaffold is a versatile family of heterocycles found in a wide range of bioactive
Nathalia B. Sá, Patrick C. Nobre, Isabelly O. Ferreira, Juliano B. Azeredo, Vanessa Nascimento   +4 more
wiley   +1 more source

Benign by design: A paradigm shift in cosmetic ingredient development

International Journal of Cosmetic Science, EarlyView.
Benign by design strategies enable the creation of biodegradable cosmetic ingredients, reducing environmental persistence while maintaining the intended biological activity. This work compiles design rules and tools to guide the development of more sustainable molecules for the cosmetics industry.
Sandra Mota, Klaus Kümmerer, Isabel Martins de Almeida, Emília Sousa   +3 more
wiley   +1 more source

(E,Z)-1,1,1,4,4,4-Hexafluorobut-2-enes: hydrofluoroolefins halogenation/dehydrohalogenation cascade to reach new fluorinated allene

Beilstein Journal of Organic Chemistry
A series of 2,3-dihalo-1,1,1,4,4,4-hexafluorobutanes and 2-halo-1,1,1,4,4,4-hexafluorobut-2-enes were prepared from commercially available hydrofluoroolefins 1,1,1,4,4,4-hexafluorobut-2-enes and their 1H, 19F and 13C chemical shifts measured.
Nataliia V. Kirij, Andrey A. Filatov, Yurii L. Yagupolskii, Sheng Peng, Lee Sprague   +4 more
doaj   +1 more source

Revolutionary ZVI-Entrapped Sol–Gel Silica Matrices: Efficient Catalytic Reduction of High-Concentration Halo-Organic Compounds—Addressing Bromoacetic Acid Contamination in Industrial Wastewaters

Gels
The de-halogenation of highly concentrated halo-organic compounds using Zero Valent Iron entrapped in silica matrices as a catalyst was investigated. This study aimed to evaluate the effectiveness of the Zero Valent Iron-entrapped organically modified ...
Gifty Sara Rolly, Dan Meyerstein, Ariela Burg, Dror Shamir, Yael Albo   +4 more
doaj   +1 more source

Design, Synthesis and Molecular Docking Studies of Some Novel Hydrazone Derivatives Based on Trimetazidine as Selective and Potent AChE Inhibitors

Drug Development Research, Volume 87, Issue 7, November 2026.
ABSTRACT Alzheimer's disease (AD) is a progressive neurodegenerative disease, and cholinergic dysfunction is considered one of the fundamental pathological factors of this disease. Guided by the clinically used acetylcholinesterase (AChE) inhibitor donepezil, we explored trimetazidine dihydrochloride as an accessible starting scaffold to generate ...
Muhammed Oğuzhan Doğan, Begüm Nurpelin Sağlık Özkan, Abdullah Burak Karaduman, Sevgi Karakuş, Yusuf Özkay, Zafer Asım Kaplancıklı, Fatih Tok   +6 more
wiley   +1 more source

A Dual GC–MS and LC–MS/MS Analytical Strategy for Evaluating Free Chlorine Toxicity in Aqueous Samples

Rapid Communications in Mass Spectrometry, Volume 40, Issue 20, 30 October 2026.
ABSTRACT Rationale Chlorine gas is a highly toxic industrial chemical that poses a significant risk in accidental releases and deliberate terrorist attacks. Reliable analytical methods for the determination of chlorine in aqueous samples are therefore required for forensic and environmental investigations.
Avital Shifrovitch, Adi Tzadok, Moran Madmon, Avi Weissberg   +3 more
wiley   +1 more source

Selective halogenation of flavanones

, 2002
A mild, efficient and regioselective method for the selective halogenation of flavonoids is presented. Halogenated flavanones and flavones are considered potential benzodiazepine receptor ligands and with DMD/NaX or oxone/acetone/water/NaX systems ...
Bernini R, Bovicelli P, Mincione E, Antonioletti R   +3 more
core   +1 more source

A Wagner–Meerwein‐Like Rearrangement Generates a Vinyl Group in the Biosynthesis of the Polychlorinated Lipopeptides Fischerazoles

Angewandte Chemie, Volume 138, Issue 37, 7 September 2026.
The fischerazoles, unusual cyanobacterial chlorinated lipopeptides are reported. During their biosynthesis, a linear fatty acyl‐acyl carrier protein (ACP) precursor is rearranged through the action of the S‐adenosyl‐methionine (SAM)‐dependent methyltransferase FshF, to generate a pendant vinyl group.
Sandra A. C. Figueiredo, Kathleen Abt, Konrad Viehrig, Peter J. Jervis, Teresa P. Martins, Iñaki Lacomba, Chuhan Li, Daniele Castagnolo, Pedro N. Leão   +8 more
wiley   +2 more sources

Electrochemical Chlorination of Levulinic Acid

Electrochemical Science Advances
Levulinic acid is a cellulose‐derived, sustainable feedstock with significant potential for use in renewable, carbon‐based polymer and chemical synthesis.
Ananda S. Amarasekara, M. A. G. K. Manchanayake   +1 more
doaj   +1 more source

Sodium Hypochlorite Pentahydrate in Organic Synthesis and Beyond

Chemistry–Methods, Volume 6, Issue 10, October 2026.
Sodium hypochlorite pentahydrate emerges as a versatile, stable, and practical oxidant for organic synthesis. This review highlights its unique reactivity, broad synthetic applications, and growing impact on sustainable oxidation chemistry, providing a comprehensive overview of recent advances and future opportunities. Sodium hypochlorite pentahydrate (
Masayuki Kirihara, Hideyuki Tsutsui, Yoshikazu Kimura   +2 more
wiley   +1 more source