Results 81 to 90 of about 6,074 (218)

Mild C─F Activation of Azido(per)Fluoroalkanes

Chemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.
Mild and selective activation of C(sp3)–F bonds in azido(per)fluoroalkanes using thiolates was developed, leading to novel functionalized azides. The reaction is initiated by nucleophilic attack of the sulfur atom to the terminal nitrogen of the azido group, followed by fluoride ion elimination.
Olena Shaitanova, María Martínez Mallo, Sergii Suikov, Blanka Klepetářová, Josef Filgas, Petr Slavíček, Lucie Bednárová, Petr Beier   +7 more
wiley   +1 more source

Cyclopropylamine‐Derived Distonic Iminium Radicals: Photoinduced Strategies in Chemo‐ and Stereo‐Selective Synthesis

Chemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.
Cyclopropylamines have emerged as powerful photocatalytic building blocks. Upon light‐induced single‐electron oxidation, they undergo strain‐release ring opening to generate distonic iminium radicals that enable diverse transformations, including ring‐opening functionalization, formal [3 + 2] cycloadditions, radical cascades, and asymmetric bond ...
Maria Chiara Cabua, Alberto Luridiana, Francesco Secci, Emanuele Cocco   +3 more
wiley   +1 more source

Synthesis, single crystal analysis, biological and docking evaluation of tetrazole derivatives

Heliyon, 2018
Tetrazoles are conjugated nitrogen-rich heterocycles considered as bio-isosteres of carboxylic acids. Tetrazoles owing to their conjugated structures serve as biologically relevant potent scaffolds.
Hamid Aziz, Aamer Saeed, Farukh Jabeen, Noor ud Din, Ulrich Flörke   +4 more
doaj   +1 more source

Chelation‐Assisted Metal‐Catalyzed Ligation and Cleavage Reactions for Chemical Biology

European Journal of Organic Chemistry, Volume 29, Issue 39, 22 October 2026.
Chelation‐assisted transition metal catalysis has emerged as a promising complement to bioorthogonal click chemistry for studying biological processes. By pre‐organizing catalytic metal centers, designed coordinating substrates enhance reactivity and biocompatibility, enabling site‐selective ligation and decaging reactions in complex biological media ...
Emilie Plantiveau, Maxime Riberaud, Frédéric Taran, Antoine Sallustrau   +3 more
wiley   +1 more source

Silica Sulfuric Acid as an Efficient Heterogeneous Catalyst for the Solvent-Free Synthesis of 1-Substituted 1H-1,2,3,4-Tetrazoles

Journal of Chemistry, 2013
Silica sulfuric acid (SSA) was found to be an efficient heterogeneous catalyst for the synthesis of 1-substituted 1H-1,2,3,4-tetrazoles from the reaction of primary amines with triethyl orthoformate and sodium azide under thermal and solvent-free ...
Davood Habibi, Hiva Nabavi, Mahmoud Nasrollahzadeh   +2 more
doaj   +1 more source

Asymmetric synthesis of tetrazole and dihydroisoquinoline derivatives by isocyanide-based multicomponent reactions

Nature Communications, 2019
Asymmetric isocyanide-based multicomponent reactions are elegant, yet challenging, strategies to access valuable N-heterocycles. Here, the authors employ a chiral Mg(II) -N,N′-dioxide catalyst in three- or four-component reactions to obtain chiral ...
Qian Xiong, Shunxi Dong, Yushuang Chen, Xiaohua Liu, Xiaoming Feng   +4 more
doaj   +1 more source

Synthesis of Novel bis-1,5-Disubstituted-1H-Tetrazoles by an Efficient Catalyst-Free Ugi-Azide Repetitive Process

Molecules, 2015
A series of five novel bis-1,5-disubstituted-1H-tetrazoles (bis-1,5-DS-1H-T) were quickly prepared by a catalyst-free Ugi-azide repetitive process from easily accessible starting materials in excellent yields, either at room temperature (88%–95%) or ...
Luís E. Cárdenas-Galindo, Alejandro Islas-Jácome, Karla M. Colmenero-Martínez, Antonio Martínez-Richa, Rocío Gámez-Montaño   +4 more
doaj   +1 more source

Diethylene Glycol‐Linked Ring‐Fused Bis‐Azoles: Target‐Oriented Synthesis, In Silico Screening, and Antitumor Activity

ChemMedChem, Volume 21, Issue 19, 14 October 2026.
A series of diethylene glycol‐linked cyclic derivatives with diversity in the heterocyclic motif have been synthesized and screened for antitumor activity. Two bis‐thiazolo[3,2‐a]pyrimidinone derivatives displayed moderate cytotoxicity, high selectivity against hepatocellular carcinoma cells, promising VEGFR2, and remarkable FGFR2 inhibitory activities
Sami A. Al‐Hussain, Abdulrahman S. Alharbi, Zeinab A. Muhammad, Alyaa S. Abdel Halim, Magdi E. A. Zaki, Mark C. Bagley, Refaie M. Kassab   +6 more
wiley   +1 more source

Polymethylenetetrazole: Synthesis, Characterization, and Energetic Properties

Molecules
The tetrazole moiety remains one of the most interesting scaffolds in the development of new high-energy density materials (HEDMs) because of its desired characteristics, such as high nitrogen content and heat of formation (HOF).
Ljubica Brenjo, Aleksandar Oklješa, Matija Tomšič, Berta Barta Holló, Jovica Nešić, Elvira Tóth, Črtomir Podlipnik   +6 more
doaj   +1 more source

Tetrazolium Compounds: Synthesis and Applications in Medicine

Molecules, 2015
Tetrazoles represent a class of five-membered heterocyclic compounds with polynitrogen electron-rich planar structural features. This special structure makes tetrazole derivatives useful drugs, explosives, and other functional materials with a wide range
Cheng-Xi Wei, Ming Bian, Guo-Hua Gong
doaj   +1 more source