Results 71 to 80 of about 37,751 (208)

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

New monomers for (bi)pyridine-containing polymers

Chimica Techno Acta, 2020
Convenient methods for the synthesis of three monomers based on functionalized (bi)pyridines with using “1,2,4-triaizine” methodology have been developed.
A. P. Krinochkin, M. I. Savchuk, E. S. Starnovskaya, Y. K. Shtaitz, D. S. Kopchuk, I. L. Nikonov, I. S. Kovalev, G. V. Zyryanov, V. L. Rusinov, O. N. Chupakhin   +9 more
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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

Synthesis of some New 1,2,4-Triazines containing Aminopyrimidine Moiety

, 1992
Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt Manuscript received 21 February 1992, revised 20 July 1992, accepted 10 August 1992 Synthesis of some New 1,2,4-Triazines containing Aminopyrimidine ...
M. SEADA, F. HANAFY, R. M. ABDEL-RAHMAN
core   +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

3,3’-Bis(N,N-dimethylamino)-5,5’-bi-1,2,4-triazine and 6,6’-dibromo-3,3’-bis(N,N-dimethylamino)-5,5’-bi-1,2,4-triazine

, 2004
Continuing our study on the application of 1,2,4-triazines in organic synthesis [1] we prepared the title compounds as valuable intermediates for metalation reactions leading to functionalized 5,5’-bi-1,2,4-triazines [2].[...
Danuta Branowska, Andrzej Rykowski, Beata Iwańska   +2 more
core   +1 more source

Fused Heterocyclic Systems with an s-Triazine Ring. 34. Development of a Practical Approach for the Synthesis of 5-Aza-isoguanines

Molecules, 2019
Purine isosteres present excellent opportunities in drug design and development. Using isosteres of natural purines as scaffolds for the construction of new therapeutic agents has been a valid strategy of medicinal chemistry.
Ahmad Junaid, Felicia Phei Lin Lim, Yvonne Peijun Zhou, Wai Keung Chui, Anton V. Dolzhenko   +4 more
doaj   +1 more source

Synthesis and Biochemical Testing of 3-(Carboxyphenylethyl)imidazo[2,1-f][1,2,4]triazines as Inhibitors of AMP Deaminase

, 2016
C-Ribosyl imidazo[2,1-f][1,2,4]triazines and 3-[2-(3-carboxyphenyl)ethyl]-3,6,7,8-tetrahydroimidazo[4,5-d][1,3]diazepin-8-ols represent two classes of known AMP deaminase inhibitors.
Stephen D. Lindell (2268556), Simon Maechling (2268562), Richard L. Sabina (2268559)   +2 more
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Hydrophilic Sulfonated Bis-1,2,4-Triazine Ligands Are Highly Effective Reagents for Separating Actinides(III) from Lanthanides(III) via Selective Formation of Aqueous Actinide Complexes [PDF]

, 2015
We report the first examples of hydrophilic 6,6’-bis(1,2,4-triazin-3-yl)-2,2’-bipyridine (BTBP) and 2,9-bis(1,2,4-triazin-3-yl)-1,10-phenanthroline (BTPhen) ligands, and their applications as actinide(III) selective aqueous complexing agents.
Harwood, Laurence, Lewis, Frank W., Geist, Andreas, Distler, Petr, Kozhevnikov, Valery, Kozhevnikov, Valery N., Lewis, Frank, Hudson, Michael, Harwood, Laurence M., John, Jan, Hudson, Michael J.   +10 more
core   +1 more source

Ring Transformation of Oxazolo [3,2-b][1,2,4] Triazines [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1995
6-Methyl-2-phenyl-7H-Oxazolo [3,2-b] [1,2,4] triazine (1) undersent ting transformation on treatment with ammonia and primary amines to afford the corresponding imidazol [1,2-b][1,2,4] triazine (2).
Majid M. Heravi, Mehdi Bakavoli, Zohreh Sadjadi Hashemi   +2 more
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