Results 1 to 10 of about 12,827 (160)

Microwave Synthesis of Quaternary Ammonium Salts [PDF]

open access: yesMolecules, 2008
The microwave synthesis of several quaternary ammonium salts is described. The synthesis provides comparable or better yields than published methods with reduced reaction times and in the absence of solvent.
Deveine Toney   +3 more
doaj   +5 more sources

Biological Activity of Quaternary Ammonium Salts and Their Derivatives [PDF]

open access: yesPathogens, 2020
Besides their positive role, microorganisms are related to a number of undesirable effects, including many diseases, biodeterioration and food spoilage, so when their presence is undesired, they must be controlled.
Dobrawa Kwaśniewska   +2 more
doaj   +4 more sources

Review on Application of Quaternary Ammonium Salts for Gas Hydrate Inhibition

open access: yesApplied Sciences, 2020
Gas hydrate solids occurrence is considered as one of the serious challenges in flow assurance as it affects the hydrocarbon production significantly, especially in deep water gas fields. The most cost-effective method to inhibit the formation of hydrate
Haizatul Hafizah Hussain, Hazlina Husin
doaj   +3 more sources

Hydrogenation of Alkynes and Olefins Catalyzed by Quaternary Ammonium Salts [PDF]

open access: yesAdvanced Science
Catalytic hydrogenation of unsaturated hydrocarbons to alkenes and alkanes using molecular hydrogen is one of the most fundamental transformations in organic synthesis.
Qi Guo   +7 more
doaj   +2 more sources

Synthesis and Spectroscopic Characterisation of N-Alkyl Quaternary Ammonium Salts Typical Precursors of Cyanines

open access: yesMolecules, 2002
The synthesis and spectroscopic characterisation of some representative N-alkylsubstituted quaternary ammonium salts derived from benzothiazole, benzoxazole, benzoselenazole, indole and quinoline are described.
P. Almeida   +4 more
doaj   +3 more sources

Modern chemical disinfectants and antiseptics. Part II

open access: yesЖурнал органічної та фармацевтичної хімії, 2021
Aim. To generalize and systematize information on the properties of modern chemical disinfectants and antiseptic agents (DA and AA) – peroxide compounds, surfactants, salts of heavy metals and metals of variable valence in the highest oxidation state ...
Vasyl M. Britsun   +3 more
doaj   +1 more source

Recent advances in the application of quaternary ammonium compounds in biomedical materials

open access: yes口腔疾病防治, 2019
Microbial infections affect people worldwide. Quaternary ammonium salts serve antibacterial, antifungal,antiviral, anti⁃matrix metalloproteinase and polymerization functions. While the modification of biomaterials with quater⁃ nary ammonium salts cannot
JIAO Yang, CHEN Jihua
doaj   +1 more source

Synthesis, Analysis, Cholinesterase-Inhibiting Activity and Molecular Modelling Studies of 3-(Dialkylamino)-2-hydroxypropyl 4-[(Alkoxy-carbonyl)amino]benzoates and Their Quaternary Ammonium Salts

open access: yesMolecules, 2017
Tertiary amines 3-(dialkylamino)-2-hydroxypropyl 4-[(alkoxycarbonyl)amino]benzoates and their quaternary ammonium salts were synthesized. The final step of synthesis of quaternary ammonium salts was carried out by microwave-assisted synthesis.
Tereza Padrtova   +9 more
doaj   +1 more source

Synthesis, physiochemical property and antimicrobial activity of novel quaternary ammonium salts [PDF]

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2018
H Li, Chun-Hua Wang, Feng Zhao
exaly   +2 more sources

Nickel Coatings Electrodeposited from Watts Type Baths Containing Quaternary Ammonium Sulphate Salts

open access: yesInternational Journal of Electrochemical Science, 2017
The paper presents the anti-corrosive properties of nickel coatings, deposited on the surface of the steel AISI 1018 from Watts type baths, containing protic and aprotic quaternary ammonium sulphate salts additives.
Jarosław Wojciechowski   +3 more
doaj   +1 more source

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