Results 51 to 60 of about 89,598 (163)

Synthesis and crystal structures of 6- and 8-methyl-3-phenylbenzo[e][1,2,4]triazines

Acta Crystallographica Section E: Crystallographic Communications
The synthesis and single-crystal X-ray structures of two regioisomeric Blatter radical precursors, 6-methyl-3-phenylbenzo[e][1,2,4]triazine, (I), and 8-methyl-3-phenylbenzo[e][1,2,4]triazine (II), C14H11N3, are reported.
Christos P. Constantinides, Syed Raza, Fadwat Bazzi, Nisreen Sharara, Simona Marincean   +4 more
doaj   +1 more source

Solubility Challenges and Strategies for Organic Sodium‐Ion Batteries: Status and Perspectives

Small, Volume 22, Issue 12, 25 February 2026.
Organic sodium‐ion batteries (OSIBs) have garnered interest due to their low cost, abundant resources, and sustainability. However, the solubility of organic materials in aprotic electrolytes results in electrode deterioration, active material loss, and poor cycling stability.
Ying Qi, Huaping Zhao, Lizhuang Chen, Yong Lei   +3 more
wiley   +1 more source

Recent Advances in Bioconjugation of Aromatic Amino Acid Residues by a Reactivity‐Guided Approach

The Chemical Record, Volume 26, Issue 2, February 2026.
This review highlights recent advances in the bioconjugation of aromatic amino acids residues, focusing on strategies that leverage their inherent chemical reactivity to enable precise and versatile modifications of biomacromolecules, illustrating relevant applications.
Bruno M. da S. Santos, Lívia C. R. M. da Frota, Thais G. Silva, Fernanda G. Finelli   +3 more
wiley   +1 more source

Evaluation of Multidentate Ligands Derived from Ethyl 1,2,4‐triazine‐3‐carboxylate Building Blocks as Potential An(III)‐Selective Extractants for Nuclear Reprocessing

ChemistryOpen
Bis‐1,2,4‐triazine ligands are amongst the most promising soft N‐donor ligands for the partitioning of trivalent actinides from trivalent lanthanides; a key separation proposed in the future reprocessing of spent nuclear fuels.
Andrey V. Zaytsev, Petr Distler, Jan John, Andreas Wilden, Giuseppe Modolo, Mark Sims, Frank W. Lewis   +6 more
doaj   +1 more source

Unsymmetrical β‐Fused Blatter Radical Zinc Phthalocyanines

Chemistry – A European Journal, Volume 32, Issue 4, 23 January 2026.
Herein, we report the first synthesis of a new class of β‐fused Blatter–Zn phthalocyanines featuring a persistent radical π‐system, π–π‐driven crystal packing, and SOMO‐centered redox behavior. Single‐crystal X‐ray diffraction shows packing motifs dominated by centrosymmetric π‐π dimers.
Adrián Hernández, Georgia A. Zissimou, Javier Ortiz, Andreas Kourtellaris, Christos P. Constantinides, Daniel B. Lawson, Ziqi Hu, Eugenio Coronado, Panayiotis A. Koutentis, Ángela Sastre‐Santos   +9 more
wiley   +1 more source

A theoretical study on the corrosion inhibition of Cu surfaces using 4-amino-3-thioxo-6-methyl-1,2,4-triazine-5-one and its derivatives

Scientific Reports
The current study focused on evaluating the behavior of 4-amino-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2 H)-one (1a) along with its tautomers, as well as 4-amino-6-methyl-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2 H)-one (2a) and its tautomers as potential ...
Zahra Jafarzadegan, Alireza Najafi Chermahini, Hossein Farrokhpour, Majid Mir Mohammad Sadeghi   +3 more
doaj   +1 more source

Microwave Assisted Synthesis of Some New Fused 1,2,4-Triazines Bearing Thiophene Moieties With Expected Pharmacological Activity

Molecules, 2011
Rapid and efficient solvent-free synthesis of 4-amino-3-mercapto-6-[2-(2-thienyl)vinyl]-1,2,4-triazin-5(4H)-one 1 under microwave irradiation is described. Some new fused heterobicyclic nitrogen systems such as 1,2,4-triazino[3,4-b][1,3,4]thiadiazinones,
Mosselhi A. Mosselhi, Mohamed M. Youssef, Hosam A. Saad   +2 more
doaj   +1 more source

Solvated Electron‐Driven Stepwise ORR on Na‐Metalated N‐Rich Carbon Nitride for Efficient Photocatalytic H2O2 Production

Advanced Science, Volume 13, Issue 1, 5 January 2026.
A sodium‐metalated, nitrogen‐rich carbon nitride (PH‐C3N5‐Na) is developed to generate solvated electrons (SEs) under visible‐light irradiation via a eutectic NaCl/LiCl molten salt‐assisted method. The in situ generated SEs drive a stepwise oxygen reduction via •O2−. Thus, an exceptional quantum efficiency of 54.4% (420 nm) is achieved.
Jianan Feng, Weilin Qin, Li Shangguan, Hui Zhang, Jianhua Sun, Shunping Sun, Yu Guo, Weiwei Lei   +7 more
wiley   +1 more source

2-Phenyl-7-(4-pyridylmethylamino)-1,2,4-triazolo[1,5-a][1,3,5]triazin-5(4H)-oneFused heterocyclic systems with s-triazine ring. Part 17. For part 16, see Dolzhenko et al. (2011).

Acta Crystallographica Section E, 2011
In the title compound, C16H13N7O, the 1,2,4-triazolo[1,5-a][1,3,5]triazine heterocyclic system is essentially planar (r.m.s. deviation = 0.0375 Å).
Lip Lin Koh, Wai Keung Chui, Anna V. Dolzhenko, Geok Kheng Tan, Anton V. Dolzhenko   +4 more
doaj   +1 more source

Decoding Urease Inhibition: A Comprehensive Review of Inhibitor Scaffolds

ChemMedChem, Volume 21, Issue 2, January 2026.
Representative functional groups known for urease inhibition are reviewed within diverse scaffolds using structure–activity analyses to identify features associated with high inhibitory activity. Urease is a metalloenzyme produced by a wide range of organisms and plays a critical role in nitrogen microbial metabolism by catalyzing the hydrolysis of ...
Nuno Martinho, Natália Aniceto
wiley   +1 more source