Results 1 to 10 of about 308,670 (298)

Preparation and Characterization of Novel Cationic Chitosan Derivatives Bearing Quaternary Ammonium and Phosphonium Salts and Assessment of Their Antifungal Properties [PDF]

open access: goldMolecules, 2017
Chitosan is an abundant and renewable polysaccharide, its derivatives exhibit attractive bioactivities and the wide applications in various biomedical fields.
Wenqiang Tan   +4 more
doaj   +4 more sources

Sterically Hindered Phosphonium Salts: Structure, Properties and Palladium Nanoparticle Stabilization [PDF]

open access: yesNanomaterials, 2020
A new family of sterically hindered alkyl(tri-tert-butyl) phosphonium salts (n-CnH2n+1 with n = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20) was synthesized and evaluated as stabilizers for the formation of palladium nanoparticles (PdNPs), and the prepared PdNPs,
Daria M. Arkhipova   +6 more
doaj   +3 more sources

Efficacy of Novel Quaternary Ammonium and Phosphonium Salts Differing in Cation Type and Alkyl Chain Length against Antibiotic-Resistant Staphylococcus aureus. [PDF]

open access: goldInt J Mol Sci, 2023
Antibacterial resistance poses a critical public health threat, challenging the prevention and treatment of bacterial infections. The search for innovative antibacterial agents has spurred significant interest in quaternary heteronium salts (QHSs), such ...
Nunes B   +5 more
europepmc   +4 more sources

Amide Synthesis through the In Situ Generation of Chloro- and Imido-Phosphonium Salts. [PDF]

open access: goldACS Omega, 2020
We describe a methodology for the amidation of carboxylic acids by generating phosphonium salts in situ from N-chlorophthalimide and triphenylphosphine. Aliphatic, benzylic, and aromatic carboxylic acids can be transformed into their amide counter parts ...
Irving CD, Floreancig JT, Laulhé S.
europepmc   +4 more sources

Synthesis of quaternary fluoroalkyl phosphonium salts with high thermal stability and their application as antibacterial agents for polycarbonate (PC)

open access: goldPolymer Testing, 2021
Two kinds of quaternary fluoroalkyl phosphonium salts with different fluoroalkyl chain length were synthesized as antibacterial agents for polycarbonate (PC).
Junwei Ai   +3 more
doaj   +2 more sources

Ferrocene-Containing Sterically Hindered Phosphonium Salts [PDF]

open access: yesMolecules, 2018
The synthesis and physical properties of the series of the ferrocenyl-containing sterically hindered phosphonium salts based on di(tert-butyl)ferrocenylphosphine is reported.
Vadim Ermolaev   +10 more
doaj   +2 more sources

Fluorescent pyridine phosphonium salts via transmutation of metallabenzenes [PDF]

open access: yesNature Communications
Metallabenzenes are recognized as a unique class of aromatic compounds, not only of structural and theoretical interest but also as platforms to design powerful transformations.
Yaowei Zhang   +5 more
doaj   +2 more sources

Oxygen-Containing Quaternary Phosphonium Salts (oxy-QPSs): Synthesis, Properties, and Cellulose Dissolution. [PDF]

open access: goldPolymers (Basel), 2023
Arkhipova DM   +5 more
europepmc   +3 more sources

From broad-spectrum biocides to quorum sensing disruptors and mussel repellents: antifouling profile of alkyl triphenylphosphonium salts. [PDF]

open access: yesPLoS ONE, 2015
'Onium' compounds, including ammonium and phosphonium salts, have been employed as antiseptics and disinfectants. These cationic biocides have been incorporated into multiple materials, principally to avoid bacterial attachment. In this work, we selected
Alberto J Martín-Rodríguez   +6 more
doaj   +5 more sources

On the reactivity of triphenylphosphoranylidenesuccinic anhydride with nitrogen nucleophiles: a new synthetic route to nitrogen-containing phosphonium salts [PDF]

open access: goldJournal of the Brazilian Chemical Society, 2000
The reactions of triphenylphosphoranylidenesuccinic anhydride with amines, hydrazines and dipolar nitrogen nucleophiles were investigated, and a new method of synthesis of phosphonioum salts containing the fragment RNHC(C=O)CH2CH2PPh3 is described.
Cunha Silvio, Kascheres Albert
doaj   +2 more sources

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