Results 131 to 140 of about 14,636 (294)

Quaternary salts of pyrinide derivatives [PDF]

open access: yes, 2018
Ovaj završni rad pregled je već postojećih saznanja o heterocikličkim spojevima među kojima se u radu ističe piridin, o derivatima piridina, kvaternim amonijevim solima te reakciji kvaternizacije.
Miš, Klara
core   +1 more source

Application of the Ferguson principle to the antimicrobial activity of quaternary ammonium salts

open access: yes, 1965
The activity of three quaternary ammonium salts, dodecyltrimethylammonium chloride, dodecyldimethylethylammonium chloride and dodecylpyridinium chloride, against M. aureus, E. coli and C.
Norman D Weiner   +2 more
core   +1 more source

Quaternary Ammonium Salts of Cationic Lipopeptides with Lysine Residues - Synthesis, Antimicrobial, Hemolytic and Cytotoxic Activities. [PDF]

open access: yesProbiotics Antimicrob Proteins, 2023
Sikora K   +5 more
europepmc   +1 more source

Asymmetric α‐Alkylation With Activated and Unactivated Electrophiles by a Highly Productive and Recyclable Lewis Acid/Imidazolium Catalyst

open access: yesAngewandte Chemie International Edition, EarlyView.
An air‐stable, easily prepared, bifunctional Cu(II)/imidazolium complex enables highly enantioselective α‐alkylation of 1,3‐dicarbonyls with outstanding productivity (TON up to 1740). Highlights include broad electrophile scope spanning π‐activated and nonactivated reagents, stereo‐retentive allylation, simple catalyst synthesis, and efficient catalyst
Johanna Haußmann   +8 more
wiley   +1 more source

Advanced Separation Technologies for Light Olefin and Alkane (C2‐C4): Recent Advances in Extraction, Adsorption, and Membrane Separation

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT With the rapid development of the petrochemical industry, efficient separation technology for olefins and alkanes with the same number of carbon atoms has become an important research topic to enhance the efficiency of petroleum resource utilization and optimize product quality.
Shasha Zhao, Kang Zhao, Zhen Liu
wiley   +1 more source

Quaternary ammonium intermediates and monomers with liquid crystal properties

open access: yes, 1999
Several quaternary ammonium salts, based on ethanolamine and diethanolamine, bearing C10 and C12 alkyl chains were synthesized comparatively with the corresponding amides.
Stoleriu, Aurel V.   +3 more
core   +1 more source

Fine Particulate Matter Constituents, Ozone, and Systemic Lupus Erythematosus: A Large General‐Population Cohort Analysis With Extended Quantile g‐Computation

open access: yesArthritis &Rheumatology, EarlyView.
Objective The aim of this study was to investigate whether exposure to mixture of individual fine particulate matter (PM2.5) chemical constituents is associated with incident systemic lupus erythematosus (SLE) and if ozone modifies this association and/or is associated with SLE onset.
Naizhuo Zhao   +9 more
wiley   +1 more source

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