Results 41 to 50 of about 7,970 (195)

Functionalized 1,3,5-triazine-derivatives as promising anticancer agents: synthesis and cytotoxic activity in vitro

Учёные записки Санкт-Петербургского государственного медицинского университета им. Акад. И.П. Павлова
Introduction. A promising area of application of 1,3,5-triazines in medical chemistry is the development of highly effective anticancer agents. It is noteworthy that a significant cytotoxic effect may occur with 2,4,6-substituted 1,3,5-triazine ...
A. V. Protas, O. V. Mikolaichuk, E. A. Popova, K. V. Timoshchuk, D. N. Maistrenko, O. E. Molchanov, V. V. Sharoyko, K. N. Semenov   +7 more
doaj   +1 more source

5-Methyl-3,6,7,8a-tetrahydro-2H-diimidazo[1,2-c:1′,2′-e]pyrido[1,2-a][1,3,5]triazin-5-ium iodide

Acta Crystallographica Section E, 2010
The structure of the title compound, C12H16N5+·I−, shows that the methylation reaction with CH3I occurred at the imine N atom at position 5 of the 3,6,7,8a-tetrahydro-2H-diimidazo[1,2-c:1′,2′-e]pyrido[1,2-a][1,3,5 ...
Aleksandra Wasilewska, Franciszek Sączewski, Maria Gdaniec   +2 more
doaj   +1 more source

Water‐Enabled Ultralong Full‐Color Organic Phosphorescence in Hydrogen‐Bonded Frameworks for 4D Encryption and Bio‐Imaging

Advanced Science, EarlyView.
Water‐induced quenching challenges organic RTP materials, but a counter‐intuitive strategy employs HOF to encapsulate carbonyl guests, where water functions as a structural reinforcer. This achieves water‐enhanced ultralong RTP with full‐color emission (blue to deep red), overcoming intracellular quenching for high‐signal cellular imaging, alongside 4D
Pengcheng Wu, Zenggang Lin, Lu Yang, Weisheng Liu   +3 more
wiley   +1 more source

Synthesis of methylenebisamides using CC- or DCMT-activated DMSO

Beilstein Journal of Organic Chemistry, 2008
Bisamides are key fragments for the introduction of gem-diaminoalkyl residues into retroinverso pseudopeptide derivatives and in the synthesis of peptidomimetic compounds. The literature methods for these types of compounds have certain drawbacks.
Qiang Wang, Lili Sun, Yu Jiang, Chunbao Li   +3 more
doaj   +1 more source

Electrolyte–Framework Matching in High‐Voltage TEMPO‐COF Cathodes for Lithium Batteries

Advanced Science, EarlyView.
TEMPO‐functionalized covalent organic frameworks are investigated as high‐voltage cathodes for lithium batteries. Screening five electrolyte anions identifies lithium difluoro(oxalato)borate (LiDFOB) as the optimal electrolyte, balancing capacity, rate capability, and cycling stability, while buckypaper electrodes achieve high mass loading (40 mg cm−2)
Marilyn Esclance DMello, Nagaraj Patil, Fanni Fekecs, Sergio Pinilla, Rebeca Marcilla, Manuel Souto   +5 more
wiley   +1 more source

Study on Triazinethiol Electropolymerized Films Prepared by Cyclic Voltammetry and Galvanostatic on Copper Alloy Surface

International Journal of Electrochemical Science, 2011
Poly (6-N,N-dibutylamino-1,3,5-triazine-2,4-dithiol) nanofilm (PDB) were prepared by cyclic voltammetry and galvanostatic electropolymerization of 6-N,N-dibutylamino-1,3,5-triazine-2,4-dithiol monosodium (DBN) on copper alloy surface.
Yanni Li, Dan Wang, Haining Zhang, Fang Wang   +3 more
doaj   +1 more source

Kinetic‐Directed Thermodynamic Repair Enables the Synthesis of High‐Strain 2D Sub‐Stoichiometric COFs

Advanced Science, EarlyView.
2D covalent organic frameworks are promising photocatalysts. Yet, precise synthesis of sub‐stoichiometric COFs remains challenging due to poor kinetic control. We propose a general strategy: tuning polymerization degree of kinetic intermediates via time or solvent polarity directs their thermodynamic repair into highly crystallization. Using [4+3]‐type
Xiang Pei, Kaifu Yu, Pan He, Hongqing Wu, Bo Jiang, Kewen Shu, Yang Li, Ya Tang, Lijian Ma   +8 more
wiley   +1 more source

Ti‐Doping Activates Adjacent Zr Sites in Bimetallic MOFs for Cooperative Phospholipid Removals in Human Biomonitoring

Advanced Science, EarlyView.
Ti‐doped Zr/Ti bimetallic MOFs activate neighboring Zr sites to selectively capture phospholipids from serum through cooperative interactions. In nontargeted screening, the material minimizes matrix interference, expands detectable feature coverage, and enables broad recovery of diverse chemical hazards, providing a powerful cleanup strategy for LC ...
Yanmin Liang, Hongyue Ma, Feier Bai, Jing Zhang, Yan Qi, Bing Shao   +5 more
wiley   +1 more source

Synthesis of Polyimides derived from 2,6-diamino-4-methyl-1,3,5-triazine

مجلة بغداد للعلوم, 2016
This work included synthesis of several new polymers of polyacryloyl chloride in two steps . The first step the included the reaction of N-( sub. or un sub. benzoyl and sub. or un sub. acetyl ) amidyl sub.
Baghdad Science Journal
doaj   +1 more source

Donor–Acceptor Covalent Organic Framework Enables Ambipolar Charge Storage in Aluminum‐Ion Energy Storage

Advanced Energy Materials, EarlyView.
A donor–acceptor covalent organic framework is designed as an ambipolar cathode for aluminum‐ion energy storage. The crystalline, microporous architecture enables intrinsic charge transport without conductive additives. Multi‐electron redox activity at donor and acceptor sites supports high capacity, excellent stability, and efficient reversible ...
Cataldo Valentini, Verónica Montes‐García, Wojciech Kukułka, Saira Sarwar, Michał Bielejewski, Mateusz Wlazło, Rossella Greco, Viktorija Pankratova, Ignacio Pérez‐Juste, Dawid Pakulski, Paolo Samorì, Artur Ciesielski   +11 more
wiley   +1 more source