Results 61 to 70 of about 22,841 (254)

Synthese, Charakterisierung und Nachweis neuartiger Pyridinium-Proteinmodifikationen [PDF]

open access: yes
Die Maillard-Reaktion spielt sowohl bei der Herstellung und Verarbeitung von Lebensmitteln als auch bei pathologischen Prozessen eine entscheidende Rolle.
Rau, Robert Johannes
core   +1 more source

Synthesis, characterisation and magnetic behaviour of ionic metalloporphyrins: metal-tetrakis(N-octyl-4-pyridinium)-porphyrins with tetrabromoferrate(III) anions [PDF]

open access: yes, 2013
A series of magnetic, ionic-substituted tetrapyridyl metalloporphyrins, [tetrakis(N-octyl-4-pyridinium)-metal-porphyrin][tetrabromoferrate(III)] 4 (metal=iron, cobalt, manganese, copper or zinc), have been synthesised.
Zhou, Qing   +9 more
core  

Reaction of Pyridinium Salts Having the Functional Group with Active Methylene Compounds [PDF]

open access: yes, 2005
The reaction of pyridinium salts having the methylthio or chloro group acting as leaving group with active methylene compounds afforded 1, 2-dihydro-2-[substituted methylene] pyridines under the mild conditions.departmental bulletin ...
トミサワ, ヒロシ   +11 more
core  

Two New Coordination Compounds with a Photoactive Pyridinium-Based Inner Salt: Influence of Coordination on Photochromism

open access: yes, 2016
The past years have evidenced the rapid development of photochromic coordination compounds; however, the impact of coordination on the photochromic behavior of organic dyes has never been explored in the pyridinium derivative photochromic system. In this
Guo-Cong Guo (1395913)   +2 more
core   +1 more source

Preferred gauche conformation in N-(2-aminoethyl)pyridinium ions

open access: yes, 1984
X-ray analysis of 1-[(2S, 3S)-2-N,N-dibenzylamino-3-methyl-1-pentyl]pyridinium p-toluenesulphonate and 1-[(2S)-2-N,N-dibenzylamino-1-propyl]pyridinium p-toluenesulphonate reveals that in both compounds the central N---C---C---N moiety is in the syn ...
Jan A. Kanters   +9 more
core   +1 more source

A Synthetic Route to Quaternary Pyridinium Salt-Functionalized Silsesquioxanes

open access: yesInternational Journal of Polymer Science, 2012
A synthetic route to potentially biocidal silsesquioxanes functionalized by quaternary pyridinium functionalities has been developed. N-Alkylation reactions of the precursor compounds 4-(2-(trimethoxysilyl)ethyl)-pyridine (5) and 4-(2-trichloro ...
Nataliya Kostenko   +3 more
doaj   +1 more source

Investigating the chemistry of pyridinium ylides [PDF]

open access: yes
This thesis describes investigation into catalytic formation of pyridinium ylides from diazo compounds and their subsequent reactivity. In particular, cycloaddition reactions with electrophilic alkenes are performed to generate tetrahydroindolizines that
Abdullah, Rasha Azzam
core   +1 more source

Synthesis of Pyridinium Amphiphiles Used for Transfection and Some Characteristics of Amphiphile/DNA Complex Formation [PDF]

open access: yes, 2000
Pyridinium amphiphiles have found practical use for the delivery of DNA into cells. Starting from 4-methylpyridine, a general synthesis has been devised for the production of pyridinium amphiphiles which allows variation in both the hydrophobic part and ...
Stuart, Marc C.A.   +22 more
core   +1 more source

L-Aspartic acid pyridinium salts: In silico, synthesis and adjuvant vs antibiotic antibacterial evaluation

open access: yesResults in Chemistry
In the present study, a new series of chiral L-aspartic acid pyridinium salts have been designed, guided by molecular docking as antiemetics via TrySR or DNA GryB inhibitors, as well as an adjuvant to chloramphenicol via CAT-III inhibitor to continue ...
Jessica R. Gutiérrez Cano   +4 more
doaj   +1 more source

In Vitro Evaluation of Neutral Aryloximes as Reactivators for Electrophorus eel Acetylcholinesterase Inhibited by Paraoxon

open access: yesBiomolecules, 2019
Casualties caused by organophosphorus pesticides are a burden for health systems in developing and poor countries. Such compounds are potent acetylcholinesterase irreversible inhibitors, and share the toxic profile with nerve agents.
Daniel A. S. Kitagawa   +14 more
doaj   +1 more source

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