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[structure: see text] 1,3-Bis(2-bromophenyl)-2,5-diphenylbenzenes are readily available by the condensation of phenylacetates with the corresponding pyrylium salts and undergo a palladium-catalyzed dehydrohalogenation to give functionalized dibenzo[fg,op]naphthacenes.
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http://dx.doi.org/10.1021/ol034626g | DOI Listing |
Langmuir
September 2025
Laboratory of Electrochemistry-Corrosion, Metallurgy and Inorganic Chemistry, Faculty of Chemistry, USTHB, BP 32, 16111, Algiers, Algeria.
Azo dyes, prevalent in various industries, including textile dyeing, food, and cosmetics, pose significant environmental and health risks due to their chemical stability and toxicity. This study introduces the synthesis and application of a copper hydrogen-π-bonded benzoate framework (Cu-HBF) and its derived marigold flower-like copper oxide (MFL-CuO) in a synergetic adsorption-photocatalytic process for efficiently removing cationic azo dyes from water, specifically crystal violet (CV), methylene blue (MB), and rhodamine B (RhB). The Cu-HBF, previously available only in single crystal form, is prepared here as a crystalline powder for the first time, using a low-cost and facile procedure, allowing its application as an adsorbent and also serving as a precursor for synthesizing well-structured copper oxide (MFL-CuO).
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, GSP-445, Nizhny Novgorod 603950, Russia.
In this work, an approach enabling the synthesis of η-alkene lithium complexes (Carb)Li(η-L) (L = 1-octene, cyclohexene) is elaborated. For 1,5-hexadiene, the same approach results in a binuclear μ-η:η-diene complex. The QTAIM parameters reveal the electrostatic nature of the Li-alkene interaction.
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
Center of Drug Discovery, State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 211198, China.
The advancement of bioorthogonal cleavage platforms has emerged as a critical frontier in chemical biology, offering precise molecular liberation through physiologically compatible activation mechanisms. Despite its significant potential, ensuring efficacy typically requires rapid reaction kinetics, high-efficiency payload release, and stable reactants; however, relevant reports remain sparse. Herein, we developed a strain-promoted alkyne-nitrone cycloaddition (SPANC)-based click-release chemistry through installation of a carbamate-linked release moiety at the propargyl position of cyclooctyne, triggering a spontaneous elimination following click cycloaddition to achieve efficient payload liberation.
View Article and Find Full Text PDFDalton Trans
September 2025
Department of Chemistry, National Cheng Kung University, No. 1 University Rd., Tainan 701014, Taiwan.
We report the synthesis of homoleptic two-coordinate Co and Ni complexes supported by a sterically hindered NIm ligand (1,3-bis(2,6-diisopropylphenyl)imidazolin-2-iminato). Their formulation as two-coordinate complexes was verified by single-crystal X-ray diffraction analyses, and their M-N bond distances are between those in the reported transition-metal imido and amido complexes, suggesting a multiple-bond character. These coordinatively unsaturated complexes readily react with GeCl·dioxane, affording bimetallic Co/Ge and Ni/Ge complexes, demonstrating facile and rational syntheses of heterobimetallic complexes.
View Article and Find Full Text PDFSmall
September 2025
Jožef Stefan Institute, Jamova cesta 39, Ljubljana, SI-1000, Slovenia.
The demand for rapid, field-deployable detection of hazardous substances has intensified the search for plasmonic sensors with both high sensitivity and fabrication simplicity. Conventional approaches to plasmonic substrates, however, often rely on lithographic precision or complex chemistries limiting scalability and reproducibility. Here, a facile, one-step synthesis of vertically aligned 2D nanosheets composed of intergrown CuO/CuO crystallites is presented, fabricated via oxygen plasma discharge on copper substrates.
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