Results 261 to 270 of about 17,647 (331)

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Rh‐Catalyzed [2 + 2 + 2] Cycloaddition of Linked Bis(Diynes) Ar‐C≡C‐C≡C‐(CH2)3‐C≡C‐C≡C‐Ar With Quinones: Synthesis and Photophysical Properties of Bis(Arylethynyl)‐Naphthoquinones and Anthraquinones

Chemistry – A European Journal, EarlyView.
We report the synthesis bis(arylethynyl)naphtho‐ and anthraquinones via Rh(I)‐catalyzed [2 + 2 + 2] cycloaddition reactions. The substrate scope of both quinones and linked bis‐diynes was explored. Microwave irradiation remarkably enhanced yields.
Luana A. Machado, Jianhua Han, Fábio G. Delolo, Joyce C. Oliveira, Breno U. Abreu, Hállen D. R. Calado, Joannes Krebs, Leibo Tan, Qing Ye, Tobias Groß, Christoph Lambert, Camille Latouche, Abdou Boucekkine, Jean‐François Halet, Holger Braunschweig, Todd B. Marder, Eufrânio N. da Silva Júnior   +16 more
wiley   +1 more source

Antineoplastic Effects of Thymoquinone on Pancreatic Atypical Acinar Cell Foci Treated With Azaserine. [PDF]

J Biochem Mol Toxicol
Yildiz H, Hartavi B.
europepmc   +1 more source

Silent Partners in the Mill: Unveiling the Role of Additives in Mechanochemical Synthesis

Chemistry – A European Journal, EarlyView.
Mechanochemistry offers a sustainable, solvent‐free alternative to traditional synthesis, often enhanced by additives in a process known as additive‐assisted grinding. This review discusses how various additives, including liquids, ionic solids, and advanced materials like ionic liquids and piezoelectric compounds, improve reaction efficiency ...
Johanna Breinsperger, Nika Podlesnik, Francesco Mele, Michael Schnürch   +3 more
wiley   +1 more source

Unusual Plastoquinones in Non-Phototrophic Nitrifying Bacteria. [PDF]

Environ Microbiol Rep
Bale NJ, Fujimura H, Pjevac P, Koenen M, Ikeda H, Itagaki S, Yamamoto Y, Palmetzhofer J, Sedlacek CJ, Palabikyan H, Sinninghe Damsté JS, Wagner M, Shiigi H, Daims H.   +13 more
europepmc   +1 more source

Polydopamine‐Mediated Grafting of Cationic Polymer Brushes for Adsorption of Fluorinated Compounds

Chemistry – A European Journal, EarlyView.
We introduce a versatile approach to fabricate tunable charged interfaces by functionalizing stonewool fibers with a polydopamine (PDA)–quaternary amine coating via a grafting‐to method. The modified surfaces exhibit rapid, concentration‐dependent adsorption of anionic species driven by electrostatic interactions.
Agnes C. Morrissey, Federica Sbordone, Fred Pashley‐Johnson, Aaron S. Micallef, Bart van de Worp, Neomy Zaquen, Prasanna Egodawatta, Laura Delafresnaye, Lukas Michalek, Christopher Barner‐Kowollik   +9 more
wiley   +1 more source

A High-Density Microchamber Array for the Analysis of Extracellular Vesicles Derived from Single Cells under Drug Treatment. [PDF]

Anal Chem
Stöcklin LR, Dietsche CL, Dittrich PS.
europepmc   +1 more source

A Riboflavin‐Derived Flavinium Salt Mediates Chemoselective Methylation Reactions

Chemistry – A European Journal, EarlyView.
A two‐component methylation protocol was developed, where the active flavin mediator can be recycled in a single step. Crystallographic data and NMR spectroscopy support the mechanistic proposal, while chemoselective methylation was observed for a broad range of biologically relevant substrates. ABSTRACT Selective methylation is among the most relevant
Tim Langschwager, Ekrem Suylu, Julian Zuber, Golo Storch   +3 more
wiley   +1 more source

The Design of a Plant-Based Biopesticide Formulation with Extracts and Derivatives Containing Naphthoquinones. [PDF]

Plants (Basel)
Calvo MI.
europepmc   +1 more source

Synthesis and characterization of a highly hydrophilic nanocomposite for wettability alteration, water/oil interfacial tension reduction, and enhanced oil recovery

The Canadian Journal of Chemical Engineering, EarlyView.
Mechanism of wettability alteration, interfacial tension reduction, and oil recovery by novel nanocomposite. Abstract The development of stable nanofluids (NFs) for enhanced oil recovery (EOR) relies on optimizing interactions between reservoir rocks and fluids.
Ehsan Jafarbeigi, Ehsan Kamari, Amir H. Mohammadi   +2 more
wiley   +1 more source