Results 51 to 60 of about 35,228 (210)

Nitrogen‐Rich 5,5′‐Azotetrazolates: A Broad Spectrum of Technologically Accessible Gas‐Generating Pyrotechnic Materials

ChemistryOpen, Volume 15, Issue 9, September 2026.
A series of ten 5,5′‐azotetrazolate salts with nitrogen‐rich bases is prepared and assessed as technologically accessible gas‐generating materials. Structural, safety, and ballistic evaluations reveal several compounds combining high bulk density, acceptable sensitivities, and favorable gas‐generation performance, highlighting the potential of ...
Adam Votýpka, Robert Matyáš, Jakub Mikuláštík, Aleš Růžička, Zdeňka Růžičková, Jan Zigmund, Miroslav Labaj, Martin Adam, Zdeněk Jalový   +8 more
wiley   +1 more source

One-Pot Acid-Catalyzed Ring-Opening/Cyclization/Oxidation of Aziridines with N-Tosylhydrazones: Access to 1,2,4-Triazines [PDF]

, 2017
A new, three-step, telescoped reaction sequence for the regioselective conversion of N-tosyl hydrazones and aziridines to 3,6-disubstituted and 3,5,6-trisubstituted 1,2,4-triazines is described. The process involves an efficient nucleophilic ring opening
Lorène Crespin, Lorenzo Biancalana (2572165), David C. Blakemore, Crespin L., Tobias Morack, Ley S. V., Morack T., Biancalana L., Lorène Crespin (3748822), David C. Blakemore (465247), Steven V. Ley, Tobias Morack (3748825), Blakemore D. C., Lorenzo Biancalana, Steven V. Ley (532034)   +14 more
core   +2 more sources

Synthesis of Novel Fused Heterocycles Based on Pyrano[2,3-c]pyrazole

Molecules, 1998
3-Substituted 1,2,4-triazole derivatives (5, 9, 13, 16b, 19), pyrimidinium salts (21), triazines (24), and aryl methylene hydrazono pyrazolopyrano-pyrimidine (27a,b) which are rearranged in basic medium to 30a,b, were afforded via the reaction of 6-amino
M. E. A. Zaki
doaj   +1 more source

Dengue Virus Molecular Targets and Antiviral Drug Development: Advances, Challenges and Therapeutic Perspectives

ChemistrySelect, Volume 11, Issue 33, 1 September 2026.
This narrative review analyzes DENV molecular targets, including structural proteins (C, prM/M, E), non‐structural components (NS1NS5), and host factors, alongside small‐molecule candidates in preclinical and clinical phases. Owing to high structural conservation, the NS2B‐NS3 protease and NS5 (RdRp/MTase) remain primary drug discovery focuses, while ...
Aryane Lucia da Silva Aguiar De Oliveira, José Arion Da Silva Moura, Pedro César de Souza, Marcelo Arthur Dias da Costa Santana, Matheus Vinicius Guimarães de Melo, Douglas Carvalho Francisco Viana, Marina Galdino Da Rocha Pitta, Isabella Luiza Ralph de Oliveira, Maira Galdino Da Rocha Pitta   +8 more
wiley   +1 more source

Síntese e caracterização de novos materiais funcionais contendo 1,2,4-oxadiazol, 1,3,4-oxadiazol e 1,2,3-triazol [PDF]

, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2014Neste trabalho de tese de doutorado são apresentadas as sínteses ecaracterizações de três novas ...
Girotto, Edivandro
core  

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

The Chemical Record, Volume 26, Issue 8, August 2026.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros, Livia C. L. Valente, Thiago Barcellos, Daniela Hartwig, Laura Abenante, Eder J. Lenardão   +5 more
wiley   +1 more source

Azine Derivatives as a New Generation of Insect Growth Regulators

CHIMIA, 2003
A new generation of insect-growth-regulator insecticides, the azines, are presented. They inhibit the chitin biosynthesis process and are active against lepidopteran pests. Their synthesis and a structure–activity relationship will be discussed.
Martin Eberle, Saleem Farooq, André Jeanguenat, Deborah Mousset, Arthur Steiger, Stephan Trah, Werner Zambach, Alfred Rindlisbacher   +7 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

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

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