Results 71 to 80 of about 23,632 (231)

Antimycobacterial activity of nitrogen heterocycles derivatives: 7-(pyridine-4-yl)-indolizine derivatives. Part VII8–12

Journal of Enzyme Inhibition and Medicinal Chemistry, 2017
A series of 13 compounds having a monoindolizine mono-salt skeleton was designed and synthesised in order to evaluate their antimycobacterial activity.
Anda-Mihaela Olaru, Violeta Vasilache, Ramona Danac, Ionel I. Mangalagiu   +3 more
doaj   +1 more source

Synthesis and structure of new N-alkoxy-N-(1-pyridinium)urea chlorides [PDF]

, 2016
New N-[1-(4-amino)pyridinium]-N-methoxyurea chloride, N-[1-(2-amino)pyridinium]-N-methoxyurea chloride and their analogs were synthesized by N-alkoxy-N-chloroureas reaction with the proper pyridines in acetonitrile or ether solution by improved procedure.
Anishchenko, A. A., Klots, E. A., Mazepa, A. V., Shishkina, S. V., Shtamburg, V. G., Shtamburg, V. V., Tsygankov, A. V., Zubatyuk, R. I.   +7 more
core  

Pyridinium N-(2'-azinyl)aminides: Regioselective synthesis of 2-alkylaminoazines [PDF]

, 2000
The regioselective alkylation of pyridinium-N-(2'-azinil)aminides with alkyl halides under mild conditions is described. The alkylation, combined with a reduction of the N-N bond, allows an easy preparation of 2-alkylaminoazines.The authors wish to thank
Burgos Gómez, Carolina, Delgado Jiménez, Francisca, García Navío, José Luis, Izquierdo Ceinos, Ma Luisa, MartÍnez Barrasa, Valentín, Álvarez-Builla Gómez, Julio   +5 more
core   +3 more sources

Pyridinium Salts Influence on Lipid Bilayers [PDF]

Biophysical Journal, 2014
In this study, we continue the investigation of different functional groups of molecules having a side long alkyl chain (C14 or C16) [Langmuir; 2011, 27(13), 8257 and J. Lipids, 2013, Article ID 592318]. Thioquinones and similar naphtothioquinones showed strong influence on the structural behavior of POPC and POPE model membranes bilayers. Such effects
Funari, Sergio de Souza, Di Vitta, Claudio, Marzorati, Liliana   +2 more
openaire   +2 more sources

Membrane Engineering for Battery Systems: Bridging Design Principles and Frontier Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The review emphasizes membrane separators' role in battery performance and safety, covering redox flow, lithium‐ion, and solid‐state batteries. It reviews advances in membrane materials (e.g., polymer electrolytes, hybrid composites) and ion transport mechanisms, while addressing challenges like dendrite growth and crossover losses.
Xiaoqun Zhou, Justice Delali Akoto, Rui Tan, Jun Ma   +3 more
wiley   +1 more source

Synthesis and crystal structure of a new pyridinium bromide salt: 4-methyl-1-(3-phenoxypropyl)pyridinium bromide

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the cation of the title molecular salt, C15H18NO+·Br−, the pyridinium and phenyl rings are inclined to one another by 11.80 (8)°. In the crystal, the Br− anion is linked to the cation by a C—H...Br hydrogen bond.
Musa A. Said, Mohamed R. Aouad, David L. Hughes, Meshal A. Almehmadi, Mouslim Messali   +4 more
doaj   +1 more source

Synthesis, structure and properties of N-alkoxy-N-(1-pyridinium)urea salts, N-alkoxy-N-acyloxyureas and N,N-dialkoxyureas [PDF]

, 2007
N-Alkoxy-N-(1-pyridinium)urea salts 3, 4 have been prepared, the conversions of N-acetoxy-N-methoxyurea 7 into N,N-dimethoxyurea 8 and of N-n-propyloxy-N-(1-pyridinium)-N',N'-dimethylurea chloride 6 into N,N dimethoxy-N',N'-dimethylurea 11 were carried ...
Distanov, V. B., Kostyanovsky, R. G., Kravchenko, S. V., Shishkin, O. V., Shtamburg, V. G., Shtamburg, V. V., Tsygankov, A. V., Zubatyuk, R. I.   +7 more
core   +1 more source

Flexible ionic pressure sensors: From migration‐electronic mechanisms to emerging iontronic paradigms

InfoMat, EarlyView.
Mechanisms, materials, structures, and applications of the FIPSs. Abstract Flexible ionic pressure sensors (FIPS) have emerged as promising candidates for bridging the gap between electronics and biologically compatible interfaces. Unlike previous reviews, which focused primarily on materials or devices, this review presents a classification of FIPS ...
Mengjie Wang, Yanan Ma, Jia Liu, Li Xu, Li Wen, Ranyun Wu, Yongfa Cheng, Liang Li, Siliang Wang, Yang Yue, Zhixiang Huang   +10 more
wiley   +1 more source

The Composition of Arylstibonic Acids [PDF]

, 2010
This thesis describes a detailed ESI-MS investigation into the arylstibonic acids, organo-antimony-containing compounds that are currently of interest as anticancer reagents. Four arylstibonic acids, of nominal formula RC6H4SbO3H2 [R = p-chloro-, p-tolyl-
Wright, Cody Elvin
core   +1 more source

3D Polymeric Nanonetworks: From Self‐Assembly to Advanced Fabrication

Macromolecular Materials and Engineering, EarlyView.
This review provides the first systematic cross‐method comparison of fabrication techniques for 3D polymeric nanonetworks. It evaluates five key strategies—block copolymer self‐assembly, hyper‐crosslinking, template‐assisted methods, 3D printing, and nanolithography—across critical metrics including resolution, throughput, scalability, and material ...
Carlos G. Cobos, Xiang Yan, Marisol Martín‐González   +2 more
wiley   +1 more source