Results 71 to 80 of about 5,326,384 (292)

Investigating the chemistry of pyridinium ylides [PDF]

, 2018
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  

A Synthetic Route to Quaternary Pyridinium Salt-Functionalized Silsesquioxanes

International 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, Jochen Gottfriedsen, Liane Hilfert, Frank T. Edelmann   +3 more
doaj   +1 more source

Near Infrared Photoswitching by Direct Excitation—A Next Frontier

Angewandte Chemie International Edition, EarlyView.
Molecular photoswitches finally enter the spectral realm of near‐infrared for their direct excitation. This minireview summarizes the current state‐of‐the‐art, the design principles for achieving such low‐energy light responsiveness, and the unique applications that are unlocked by it.
Diptiprava Sahoo, Elias Ciekalski, Henry Dube   +2 more
wiley   +1 more source

Synthesis of Pyridinium Moiety Containing Triazolyl Purines

Molbank
Pyridinium salts of 2-piperidinyl-6-triazolylpurine derivatives were obtained by the introduction of pyridinium moieties into the propane-1,3-diol fragment at the N(9) position of purine to enhance the solubility of 2-amino-6-triazolylpurine derivatives ...
Aleksejs Burcevs, Māris Turks, Irina Novosjolova   +2 more
doaj   +1 more source

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

Biomolecules, 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, Samir F. de A. Cavalcante, Reuel L. de Paula, Rafael B. Rodrigues, Leandro B. Bernardo, Munique C. J. da Silva, Thiago N. da Silva, Wellington V. dos Santos, José M. Granjeiro, Joyce S. F. D. de Almeida, Marcos C. Barcellos, Ana Beatriz de A. Correa, Tanos C. C. França, Kamil Kuča, Alessandro B. C. Simas   +14 more
doaj   +1 more source

Pyridinium Compounds

, 1994
Methods for using novel quaternary pyridinium compounds in inhibiting acetylcholinesterase in mammals, specifically using the quaternary pyridinium compounds in the prophylaxis and treatment of organophosphate poisoning and mammalian dementia by ...

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Síntese de cristais líquidos isônicos e/ou discóticos contendo os heterociclos 1,2,4- E 1,3,4- oxadiazol [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2013.A presente dissertacao traz o estudo realizado com moleculas derivadas dos heterociclos 1,
Silva, Danilo Henrique da
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Quaternary Pyridinium Compounds

, 1992
Quaternary pyridinium compounds, their use in inhibiting acetylcholinesterase, their roles in the prophylaxis and treatment of organophosphate poisoning, their roles in anticholinesterase therapy and their roles as agents mimicking or opposing the ...

core  

Grafted ionomer complexes and their effect on protein adsorption on silica and polysulfone surfaces [PDF]

, 2010
peer reviewedWe have studied the formation and the stability of ionomer complexes from grafted copolymers (GICs) in solution and the influence of GIC coatings on the adsorption of the proteins beta-lactoglobulin (beta-lac), bovine serum albumin (BSA ...
Arie de Keizer, Stuart, M.A.C., Cohen Stuart, Martien A., Brzozowska, Agata M., Norde, Willem, Christophe Detrembleur, Detrembleur, Christophe, Agata M. Brzozowska, Willem Norde, de Keizer, Arie, Keizer, A., de, Norde, W., Brzozowska, A.M., Detrembleur, C., Martien A. Cohen Stuart, de Keizer, A., Stuart, Martien A. Cohen   +16 more
core   +2 more sources

Investigating the chemistry of pyridinium ylides [PDF]

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   +2 more sources