Results 71 to 80 of about 8,430 (199)

Copper on Calcium Carbonate and Marble Waste as Recyclable Catalysts for Ultrasound‐Assisted One‐Pot Synthesis of 1,4‐Disubstituted 1,2,3‐Triazoles

open access: yesChemSusChem, Volume 19, Issue 16, 27 August 2026.
A sustainable CaCO3‐supported copper catalyst, prepared by simple adsorption of Cu(II) onto natural and marble waste‐derived carbonate materials, promotes ultrasound‐assisted CuAAC reaction in water. The work provides straightforward access to 1,4‐disubstituted 1,2,3‐triazoles under mild conditions while combining catalyst recyclability with the ...
Riccardo Serra   +8 more
wiley   +1 more source

Retro‐Hetero‐Michael Addition Strategies in Organic Synthesis

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 32, 24 August 2026.
In this review, synthetic approaches to carbo‐ and heterocyclic compounds, including natural products, published in the last 15 years (2011–2025) which have either relied upon or included a retro‐hetero‐Michael addition step at any stage are discussed.
Dina Scarpi, Ernesto G. Occhiato
wiley   +1 more source

Exploring the Anticancer Activity of Ruthenium(II)–Arene and Copper(I) Complexes Bearing N‐Heterocyclic Carbene Ligands Containing Azido, Pyridinium, and Ethisterone‐Derived Triazole Groups

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 24, 21 August 2026.
A versatile library of backbone‐functionalized N‐heterocyclic carbene (NHC) ligands was developed and efficiently converted into Cu(I) and Ru(II) NHC complexes, demonstrating that ligand functionalization strongly modulates anticancer activity, with Cu(I)–NHC species showing potent and selective antiproliferative effects against ovarian and breast ...
Alessia Schiavo   +4 more
wiley   +1 more source

Triazoles as promising small molecules anticancer agents [PDF]

open access: yesRecords of Pharmaceutical & Biomedical Sciences
The 1,2,3-triazole scaffold has emerged as a pivotal heterocyclic motif in medicinal chemistry due to its unique physicochemical properties, synthetic accessibility, and broad spectrum of biological activities. These five-membered nitrogen-rich rings are
Mennatallah Shaheen   +4 more
doaj   +1 more source

The Stabilization of High‐Nitrogen Systems: 10 Catenated Nitrogen Chain

open access: yesChemistry – A European Journal, Volume 32, Issue 31, 18 August 2026.
Improving the understanding of high‐nitrogen materials. ABSTRACT High‐nitrogen materials have attracted intense interest in recent decades due to their unique chemical, physical, and biological properties. Stabilizing high‐nitrogen materials is often challenging as they become more unstable with increasing nitrogen catenation and nitrogen mass ...
Nicholas F. Scherschel   +3 more
wiley   +1 more source

Strain Release of 1‐Azabicyclo[1.1.0]butanes as a Gateway to Highly Functionalized Azetidines: New Strategies and Structural Motifs

open access: yesChemistry – A European Journal, Volume 32, Issue 31, 18 August 2026.
Over the past decade, the interest in azetidines has continuously risen, by virtue of their highly appealing pharmaceutical properties. Monocyclic, spirocyclic, and bridged azetidines can be accessed by leveraging 1‐azabicyclo[1.1.0]butanes as precursors.
Yuri Gelato   +3 more
wiley   +1 more source

Chemical Optimization of Temporin A–L Peptides: From Native Isoforms to Enhanced Antimicrobial Analogs

open access: yesChemMedChem, Volume 21, Issue 15, 14 August 2026.
Temporins, among antimicrobial peptides, are short frog‐derived molecules with potent antibacterial activity. This review highlights chemical optimization strategies applied to temporins A–L, showing how sequence tuning modulates structure, stability, and selectivity, enabling improved activity against resistant pathogens.
Ida Boccino   +2 more
wiley   +1 more source

High‐Power Rapid Laser‐Induced Synthesis of Multi‐functional Cobalt Metal‐Organic Framework With an Unprecedented Synthesis Efficiency

open access: yesAdvanced Materials Technologies, Volume 11, Issue 16, 21 August 2026.
Laser‐assisted synthesis enables rapid (within 1 h) and high‐yield (≥90%) production of Co‐MOFs with mesoporous structures, tunable magnetic and optical properties, and efficient adsorption of N2, CH4, and CO2 for low‐energy gas separation. DFT calculations elucidate the electronic structure and adsorption behavior.
Saliha Mutlu   +10 more
wiley   +1 more source

1,2,3-Triazoles as Amide-bond Surrogates in Peptidomimetics

open access: yesCHIMIA, 2013
1,2,3-Triazoles represent a class of heterocycles with interesting properties for application in peptide sciences since they closely resemble amide bonds while being stable to enzymatic degradation. These characteristics make 1,2,3-triazoles promising candidates as amide-bond surrogates for the development of novel peptidomimetics with ...
Ibai E. Valverde, Thomas L. Mindt
openaire   +5 more sources

Structural Modifications of Nonsteroidal Anti‐Inflammatory Drugs (NSAIDs): New Horizons in Antimicrobial Drug Discovery

open access: yesArchiv der Pharmazie, Volume 359, Issue 8, August 2026.
This review provides a comprehensive analysis of the molecular modifications applied to NSAIDs to develop novel antimicrobial agents. By focusing on structural changes and their impact on biological activity, the study highlights innovative strategies to combat the global challenge of antimicrobial resistance.
Ebru Koçak Aslan   +2 more
wiley   +1 more source

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