Results 51 to 60 of about 2,785 (181)

5,5′,6,6′-Tetramethyl-3,3′-bi-1,2,4-triazine

Acta Crystallographica Section E, 2011
In the title compound, C10H12N6, the two 5,6-dimethyl-1,2,4-triazine halves of the molecule are related by a centre of symmetry. The two triazine rings are coplanar to within a maximum deviation of 0.013 (2) Å from the mean ...
Ewa Wolińska, Zbigniew Karczmarzyk, Andrzej Rykowski, Waldemar Wysocki   +3 more
doaj   +1 more source

Organic and Metallacages for Chemical Sensing: Progress in Water‐Compatible Systems

Advanced Sensor Research, Volume 5, Issue 3, March 2026.
Supramolecular cages function as three‐dimensional receptors for selective molecular recognition and sensing, and this review outlines design principles for water‐stable architectures, key analyte‐ and medium‐dependent challenges, recent water‐compatible examples (including polymer‐integrated systems), and future opportunities for cage‐based ...
Rabia Zahid, Martina Viola, Maria Vittoria Balli, Guillermo Moreno‐Alcántar, Pierre Picchetti   +4 more
wiley   +1 more source

Germinability of annual bluegrass seed in western Oregon grass seed production systems

Crop, Forage &Turfgrass Management, Volume 12, Issue 1, June 2026.
Clint Mattox, Sebastian Dibblee
wiley   +1 more source

Synthesis, Properties, Applications and Challenges of Multicomponent Doped Organic Room Temperature Phosphorescence Materials

Aggregate, Volume 7, Issue 3, March 2026.
The multi‐component doping strategy, involving self‐assembly, host‐guest systems, and crystal engineering, has gained attention for its simplicity, cost‐effectiveness, structural diversity, and adjustable room‐temperature phosphorescence (RTP). This review summarizes and evaluates the progress in creating RTP materials using this strategy, highlighting
Zhenjie Zhou, Huizhong Wang, Junxiong Yao, Tian Wang, Jianhua Liu, Xiaohua Cao, Qiang Feng, Bingbing Yue, Dianyuan Wang, Jianguo Wang, Huanan Huang   +10 more
wiley   +1 more source

Erucastrum virgatum subsp. virgatum (Brassicaceae) Endemic to Sicily (Italy): Biological Properties and Phenolic Content of Leaf Extracts

Chemistry &Biodiversity, Volume 23, Issue 3, March 2026.
ABSTRACT The present work reports a comparative study between extracts obtained by different methods (ultrasonic bath‐assisted extraction, maceration, decoction, and Soxhlet extraction) from the leaves of Erucastrum virgatum subsp. virgatum collected in Sicily (Italy), using ethanol and water as “green” solvents.
Benedetta Galletta, Fabio Mondello, Federica Davì, Roberto Laganà Vinci, Francesco Cacciola, Luigi Mondello, Antonia Nostro, Natalizia Miceli, Maria Fernanda Taviano   +8 more
wiley   +1 more source

Preparation and antitumor effects of 4-amino-1,2,4-triazole Schiff base derivative

Journal of International Medical Research, 2020
Objectives The purpose of this paper was to synthesize 4-amino-1,2,4-triazole Schiff base derivative and to evaluate its antitumor activity. Methods 2,4,6-Tris (4-formylphenoxy)-1,3,5-triazine was synthesized by nucleophilic substitution with reaction of
Guo-wei Jiang, Qing Chang, Dong-yu Liang, Yu-ting Zhang, Yong-jun Meng, Qing-qing Yi   +5 more
doaj   +1 more source

Copper Coordination Materials for Selective CO2 Electroreduction Toward Multi‐Carbon Products

Carbon Neutralization, Volume 5, Issue 2, March 2026.
This review summarizes recent advances in Cu‐based coordination catalysts for electrochemical CO2 reduction reaction (CO2RR) toward multi‐carbon products. It focuses on key kinetics such as C–C coupling, and outlines design strategies and catalytic mechanisms of various Cu‐based coordination materials.
Jinze Yang, Xiaoqing Yao, Yan Wang, Siyu Lu, Jiajia Huang, Tanglue Feng   +5 more
wiley   +1 more source

Positional Methyl Effects in Benzo[e][1,2,4]triazines—Synthesis and Crystal Structure Analysis of 5-Methyl-3-phenylbenzo[e][1,2,4]triazine and Its Precursor, N′-(3-Methyl-2-nitrophenyl)benzohydrazide

Crystals
We report the synthesis, spectroscopic characterization, and single-crystal X-ray structures of 5-methyl-3-phenylbenzo[e][1,2,4]triazine (I) and its precursor N′-(3-methyl-2-nitrophenyl)benzohydrazide (IV).
Christos P. Constantinides, Jin-Seok Yi, Haidar Dakdouk, Simona Marincean   +3 more
doaj   +1 more source

Synthesis of meso-2,2’-bipyridyl-substituted calix[4]arenes and their response to metal cations

Chimica Techno Acta, 2020
A convenient synthetic approach to meso-substituted with 2,2’-bipyridine and 1-(pyridin-2-yl)isoquinoline residues calix[4]arenes is reported. This approach involves the reaction of generated in situ 2-lithio-calix[4]arene with 1,2,4-triazine precursor ...
T. D. Moseev, A. F. Khasanov, M. V. Varaksin, D. S. Kopchuk, I. S. Kovalev, O. S. Taniya, M. Rahman, S. Santra, G. V. Zyryanov, O. N. Chupakhin, V. N. Charushin   +10 more
doaj   +1 more source

Heteroaromatization with 4-Hydroxycoumarin Part II: Synthesis of Some New Pyrano[2,3-d]pyrimidines, [1,2,4]triazolo[1,5-c]pyrimidines and Pyrimido[1,6-b]-[1,2,4]triazine Derivatives

Molecules, 2001
A variety of novel [1,2,4]triazolo[1,5-c]pyrimidine-13-ones (4a-f) and (5b-d) could be obtained via reaction of 9-amino-7-(4’-chlorophenyl)-8,9-dihydro-8-imino-6H,7H-[1]benzopyrano[3`,4`:5,6]pyrano[2,3-d]pyrimidine-6-one (3) with a variety of ...
A. H. Bedair, A. H. Fakery, N. A. El-Hady, M. S. Abd El-Latif, A. M. El-Agrody   +4 more
doaj   +1 more source