Results 161 to 170 of about 44,905 (302)

Design, Synthesis, Antibacterial, Antifungal and Anticancer Evaluations of Novel β-Pinene Quaternary Ammonium Salts. [PDF]

Int J Mol Sci, 2021
Zhang L, Feng XZ, Xiao ZQ, Fan GR, Chen SX, Liao SL, Luo H, Wang ZD.   +7 more
europepmc   +1 more source

Monosubstituted N‐Arylhydroxylamine Chemistry: Integrating Contemporary Synthetic Approaches for the Efficient Construction of Diverse Heterocyclic Scaffolds

Chemistry – A European Journal, EarlyView.
Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis, Kyriakos D. Nikopoulos, Ioannis N. Lykakis   +2 more
wiley   +1 more source

Sustainable triazine-derived quaternary ammonium salts as antimicrobial agents. [PDF]

RSC Adv, 2021
Morandini A, Spadati E, Leonetti B, Sole R, Gatto V, Rizzolio F, Beghetto V.   +6 more
europepmc   +1 more source

Cationic Permethylated Cyclodextrins Capable of Self‐Assembling Into Linear Nanostructures in Water

Chemistry – A European Journal, EarlyView.
A quaternary ammonium bridge equipped with a lipophilic substituent in permethylated cyclodextrins suppresses undesired supramolecular interactions and promotes controlled, directional head‐to‐tail self‐assembly into well‐defined linear nanostructures.
Maxime Kolb, Marvin Benjaffel, Peter Faller, Laurent Raibaut, Dominique Armspach   +4 more
wiley   +1 more source

Harnessing Random Polymers as Chemoselective Catalysts With Structural Adaptability: Epoxidation of Olefinic Quaternary Ammonium Salts via Charge Recognition

Chemistry – A European Journal, EarlyView.
The development of chemoselective catalysts that operate across structurally diverse substrates remains a long‐standing challenge. Here, we demonstrate that a random heteropolymer bearing carboxylic acid and urea residues functions as a general epoxidation catalyst for olefinic quaternary ammonium salts.
Yusei Fujii, Kiyosei Takasu, Yusuke Kuroda   +2 more
wiley   +1 more source

Catalytic Transformation of Triglycerides to Biodiesel with SiO₂-SO₃H and Quaternary Ammonium Salts in Toluene or DMSO. [PDF]

Molecules, 2022
Barbosa SL, Rocha ACP, Nelson DL, de Freitas MS, Mestre AAPF, Klein SI, Clososki GC, Caires FJ, Flumignan DL, Dos Santos LK, Wentz AP, Pasa VMD, Rios RDF.   +12 more
europepmc   +1 more source

Effect of sophorolipid quaternary ammonium salts on activated sludge system

, 2018
Delbeke, Elisabeth, Liwarska-Bizukojc, E., Olejnik, D., Stevens, Christian, Van Geem, Kevin   +4 more
core   +1 more source

In‐situ asphaltene capture with iron oxide nanoparticles in steam‐assisted gravity drainage (SAGD) for improved recovery and partial upgrading of bitumen

The Canadian Journal of Chemical Engineering, EarlyView.
Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada, Saleh S. Baakeem, Mabkhot BinDahbag, M. Daniela Contreras‐Mateus, Jesus Botett, Afif Hethnawi, Nashaat N. Nassar   +6 more
wiley   +1 more source

Quaternary ammonium salts based on (-)-borneol as effective inhibitors of influenza virus. [PDF]

Arch Virol, 2021
Sokolova AS, Yarovaya OI, Baranova DV, Galochkina AV, Shtro AA, Kireeva MV, Borisevich SS, Gatilov YV, Zarubaev VV, Zarubaev VV, Salakhutdinov NF.   +10 more
europepmc   +1 more source

Learning Strategies from Nature's Blueprint to Cyclic Carbonate Synthesis

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The development of sustainable synthetic methods for cyclic carbonates draws inspiration from nature, focusing on eco‐friendly processes and renewable resources like CO2 and biomass. This review explore various CO2 activation mechanisms, green chemistry principles, and green catalysts.
Erika Saccullo, Vincenzo Patamia, Chiara Zagni, Antonio Rescifina, Giuseppe Floresta   +4 more
wiley   +1 more source