Results 71 to 80 of about 51,319 (173)

Synthesis of bis[1,2,4]triazolo[4,3-b:1′,5′-d][1,2,4]triazine, a novel polynitrogenated heterocyclic system

, 2017
2-Aryl [1,2,4]triazolo[1,5-d][1,2,4]triazine-5(6H)-thiones were methylated using methyl iodide in the presence of NaOH to give the corresponding 5-methylthio derivatives.
Montazeri, Nasser, Nazari, Niousha, Tajfirooz, Farzaneh, M.Heravi, Majid   +3 more
core   +1 more source

Synthesis, Characterization, and BSA-Binding Studies of Novel Sulfonated Zinc-Triazine Complexes

Bioinorganic Chemistry and Applications, 2018
Four Zn(II) complexes containing a pyridyl triazine core (L1 = 3-(2-pyridyl)-5,6-di(2-furyl)-1,2,4-triazine-5′,5″-disulfonic acid disodium salt and L2 = 3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine-4′,4″-disulfonic acid sodium salt) were synthesized, and ...
Nalin Abeydeera, Inoka C. Perera, Theshini Perera   +2 more
doaj   +1 more source

Efficient Routes to Pyrazolo[3,4-e][1,2,4]triazines and a New Ring System: [1,2,4]Triazino[5,6-d][1,2,3]triazines

Molecules, 2010
Arylhydrazonomalononitriles 1a,b react with phenylhydrazine to yield amidrazones 2a,b that cyclize to give 2-aryl-5-phenylhydrazono-2,5-dihydro-[1,2,4]-triazine-6-carbonitriles 5a,b upon reaction with dimethylformamide dimethylacetal (DMFDMA).
Hamad Mohamed Al-Matar, Khaled Dessouky Khalil, Doa’a Mohamed Al-Dorri, Mohamed Helmy Elnagdi   +3 more
doaj   +1 more source

Oligonucleotides Post‐Synthetic Modifications: An Overview of Clickable Nucleoside Phosphoramidites Suitable for Solid‐Phase Synthesis

ChemBioChem, Volume 27, Issue 13, 14 July 2026.
Clickable nucleoside phosphoramidites can be incorporated into oligonucleotides via solid‐phase synthesis (SPOS), enabling rapid and site‐specific post‐functionalization using bioorthogonal reactions. This review highlights their design, synthetic accessibility, and SPOS incorporation requirements, along with the kinetics and efficiency of post ...
Sébastien Depienne, Alexandra Bristiel, Dominique Urban, Dominique Guianvarc’h   +3 more
wiley   +1 more source

СИНТЕЗ 3-АЛЛИЛТИО-5-ОКСО-1,2,4-ТРИАЗИН-6-КАРБОНОВОЙ И 2-АЛЛИЛ-5-АМИНО-1,2,4-ТРИАЗИН-6-КАРБОНОВОЙ КИСЛОТ [PDF]

, 2013
The mixture of 3-mercapto-5-oxo-1,2,4-triazine-6-carboxylic and 3-oxo-5-amino-1,2,4-triazine-6-carboxylic acids have been obtained by cyclization of alloxan-5-thiosemicarbazone under NaOH.
Слепухин, Павел Александрович, Чарушин, Валерий Николаевич, Рыбакова, Анастасия Владимировна, Ким, Дмитрий Гымнанович   +3 more
core  

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

Comprehensive Phenolic Profiling and Antioxidant Evaluation of Calyx, Rind, and Edible Tissues From Non‐Astringent Persimmons (Diospyros kaki)

Chemistry &Biodiversity, Volume 23, Issue 7, July 2026.
Tissue‐specific phenolic profiling of non‐astringent persimmons (Fuyu and Jiro) reveals substantial differences in phytochemical composition and antioxidant potential. Persimmon calyx exhibits the highest concentrations of bioactive compounds, highlighting its potential as a valuable by‐product for functional food and nutraceutical applications ...
Huiwen Wang, Muhammad Sajid Arshad, Ayesha Siddiqa, Malik Adil Nawaz, Hafiz A. R. Suleria   +4 more
wiley   +1 more source

Sequential Michael Addition and Enamine-Promoted Inverse Electron Demanding Diels–Alder Reaction upon 3‑Vinyl-1,2,4-triazine Platforms

, 2016
An original one-pot Michael addition-ihDA/rDA sequence was achieved from 3-vinyl-1,2,4-triazine platforms used as unprecedented Michael acceptors. This sequence provides a novel access to functionalized [2,3]-fused pyridine derivatives via a unique ...
Franck Suzenet (1503118), Gérald Guillaumet (1503109), Magali Lorion (1670467), Jean-François Brière (1490914)   +3 more
core   +1 more source

Synthesis of Some New 1,2,4-Triazine and 1,2,5-Oxadiazine Derivatives with Antimicrobial Activity

Heteroatom Chemistry, 2019
1,2,4-Triazine and 1,2,5-oxadiazine derivatives 2–12 were obtained from treated 1,3-oxazolone (1) with phenyl hydrazine or hydroxylamine hydrochloride.
Heba E. Hashem, Ahmed M. Abo-Bakr
doaj   +1 more source

Structural Design of MOF‐Based and MOF‐Derived Composites for Oxygen Evolution Electrocatalysis: Materials Innovation for Energy and Environmental Sustainability

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.
This review provides an overview of recent developments in metal organic framework (MOF)‐based and MOF‐derived composites for efficient oxygen evolution reaction. This review also emphasizes the structural design of electrocatalyst, active site optimization, and emerging prospects of their use in practical electrolyzer systems.
Bhagyashri B. Kamble, Aditi De, Seung Joo Jang, Arun Karmkar, Venkatachalam Vinothkumar, Niyaz Mujawar, Subrata Kundu, Tae Hyun Kim   +7 more
wiley   +1 more source