Results 141 to 150 of about 35,219 (254)

Effect of Annulation Pattern on the Antiaromaticity of Thioether‐ and Sulfone‐Substituted Dinaphthopentalenes

open access: yesAsian Journal of Organic Chemistry, Volume 14, Issue 6, June 2025.
Benzannulation of dibenzopentalene leads to dinaphthopentalenes, of which, we synthesized the linear and anti‐isomer as thioethers with various substituents. Depending on the annulation pattern, their optoelectronic properties strongly differ. Of particular interest, is an increased antiaromaticity resulting from the anti‐annulation pattern, indicated ...
Mathias Hermann   +2 more
wiley   +1 more source

Application of Iron Oxide Magnetic Nanoparticles Modified by Superhydrophobic Cellulose as a Sorbent for Solid‐Phase Extraction of Fat‐Soluble Vitamins

open access: yesAnalytical Science Advances, Volume 6, Issue 1, June 2025.
ABSTRACT Superhydrophobic cellulose‐coated magnetic nanoparticles (SCCMNPs) were synthesized and applied as an advanced solid‐phase extraction (SPE) sorbent for the simultaneous extraction of fat‐soluble vitamins (FSVs) (A, E and D3). These modified nanoparticles (NPs) improve extraction efficiency and reduce process time through magnetic separation ...
Fariborz Momenbeik, Arezoo Khatam
wiley   +1 more source

Catalysis With Deep Eutectic Solvents: Challenges and Opportunities

open access: yesChemCatChem, Volume 17, Issue 11, June 6, 2025.
Deep eutectic solvents (DESs) are emerging as sustainable alternatives in catalysis, offering tunable properties for diverse chemical transformations. This review explores the dual role of DESs as solvents and catalysts, highlighting advancements in organic chemistry, materials science, CO2 fixation, biomass valorization, polymer degradation, and ...
Eduardo Guzmán
wiley   +1 more source

Advanced Ignition and Combustion Analysis of Second‐Generation Biodiesels in Turbocharged Diesel Engines

open access: yesEnergy Science &Engineering, Volume 13, Issue 6, Page 2620-2630, June 2025.
ABSTRACT This study investigates the energy release characteristics of second‐generation biodiesel blends derived from beef tallow and castor bean in a turbocharged compression ignition engine. The primary objective was to evaluate ignition delay, combustion phasing, and energy release rates at various engine loads using blends of B10 and B20 biodiesel
Balamurugan Mani   +5 more
wiley   +1 more source

Saponification of Acetate Rayon under Stretch

open access: bronze, 1952
Kunio Makishima   +2 more
openalex   +2 more sources

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