Results 61 to 70 of about 12,017 (229)

Electroactive Tetrathiafulvalenyl-1,2,3-triazoles by Click Chemistry: Cu- versus Ru-Catalyzed Azide-Alkyne Cycloaddition Isomers [PDF]

, 2012
Two series of 4- and 5-tetrathiafulvalenyl-1,2,3-triazoles, as multifunctional ligands and precursors for molecular materials, have been synthesized by copper- or ruthenium-based click chemistry.
N. Avarvari, T. Biet, T. Cauchy
core   +4 more sources

Design, synthesis, in silico and in vitro antimicrobial screenings of novel 1,2,4-triazoles carrying 1,2,3-triazole scaffold with lipophilic side chain tether

Chemistry Central Journal, 2017
Background 1,2,4-Triazoles and 1,2,3-triazoles have gained significant importance in medicinal chemistry. Results This study describes a green, efficient and quick solvent free click synthesis of new 1,2,3-triazole-4,5-diesters carrying a lipophilic side
Mohamed Reda Aouad, Mariem Mohammed Mayaba, Arshi Naqvi, Sanaa K. Bardaweel, Fawzia Faleh Al-blewi, Mouslim Messali, Nadjet Rezki   +6 more
doaj   +1 more source

Regioselective synthesis, characterization and antimicrobial evaluation of amide-ether linked 1,4-disubstituted 1,2,3-triazoles [PDF]

Journal of the Serbian Chemical Society, 2017
Regioselective synthesis of some amide–ether-linked 1,4-disubstituted 1,2,3-triazoles was realized via the copper(I)-catalyzed click reaction of 1-(prop-2-ynyloxy)naphthalene, 2-(prop-2-ynyloxy)naphthalene and 1,4-bis-(prop-2-ynyloxy)benzene with 2-azido-
Kaushik Chander Prakash, Kumar Krishan, Kumar Devinder, Mor Satbir, Kumar Ashwani, Kumar Jindal Deepak   +5 more
doaj   +1 more source

Development of 1,2,3-Triazole-Based Sphingosine Kinase Inhibitors and Their Evaluation as Antiproliferative Agents [PDF]

, 2017
Two series of N-(aryl)-1-(hydroxyalkyl)pyrrolidine-2-carboxamides (2a-2g and 3a-3g) and 1,4-disubstituted 1,2,3-triazoles (5a-5h and 8a-8h) were synthesized.
Bianco, Roberto, Caliendo, Giuseppe, Ciciola, Paola, Cirino, Giuseppe, Corvino, Angela, Fiorino, Ferdinando, Frecentese, Francesco, Incisivo, Giuseppina Maria, Magli, Elisa, Perissutti, Elisa, Riemma, Maria Antonietta, Rosa, Roberta, Roviezzo, Fiorentina, Saccone, Irene, Santagada, Vincenzo, Severino, Beatrice, Temussi, Piero A   +16 more
core   +2 more sources

Strategies Towards the Synthesis of N2-Substituted 1,2,3-Triazoles

Anais da Academia Brasileira de Ciências, 2019
The chemistry of 1,2,3-triazoles gained much attention since the discovery of the copper catalyzed Alkyne-azide cycloaddition (CuAAC) reaction which delivers exclusively the 1,4-regioisomer in high yields.
RODRIGO OCTÁVIO M.A. DE SOUZA, LEANDRO S. DE MARIZ E MIRANDA   +1 more
doaj   +1 more source

Novel allyl-hydrazones including 2,4-dinitrophenyl and 1,2,3-triazole moieties as optical sensor for ammonia and chromium ions in water

BMC Chemistry, 2022
It is critical to take safety action if carcinogenic heavy metals and ammonia can be detected quickly, cheaply, and selectively in an environmental sample. As a result, compound 4a [4-(1-(2-(2,4-Dinitrophenyl)hydrazineylidene)-3-(naphthalen-2-yl)allyl)-5-
Hanan A. Mohamed, Bakr F. Abdel-Wahab, Mahmoud N. M. Yousif, Reda M. Abdelhameed   +3 more
doaj   +1 more source

A combined experimental and theoretical study of the thermal cycloaddition of aryl azides with activated alkenes.

, 2011
International audienceReactions were performed from aryl azides on the one hand, and activated alkenes coming from β-dicarbonyl compounds or malonodinitrile on the other hand, either with recourse to conventional heating or to microwave activation, to ...
Abdelmounim, Safer, Bentabed-Ababsa, Ghenia, Derdour, Aïcha, Domingo, Luis R., Mongin, Florence, Nassar, Ekhlass, Roisnel, Thierry, Sáez, José A., Zeghada, Sarah   +8 more
core   +3 more sources

Regioselective Formation of 2,5-Disubstituted Oxazoles Via Copper(I)-Catalyzed Cycloaddition of Acyl Azides and 1-Alkynes [PDF]

, 2011
The reaction of 1-alkynes with acylazides in the presence of [Tpm*,BrCu(NCMe)]BF4 (Tpm*,Br = tris(3,5-dimethyl-4-bromopyrazolyl)methane) as the catalyst provides 2,5-oxazoles in moderate to high yields.
Cano Rico, Israel, Nicasio Jaramillo, María Carmen, Pérez Romero, Pedro José, Álvarez, Eleuterio   +3 more
core   +1 more source

Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview

Chemistry – A European Journal, EarlyView.
The graphical abstract summarizes the review “Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview”, highlighting representative Pd(II)‐catalyzed methods for the β‐arylation of α‐amino acids. Key mechanistic features, substrate diversity, and synthetic relevance of these transformations are showcased. Abstract Metal‐catalyzed C─
Davide Illuminati, Claudio Trapella, Vinicio Zanirato, Virginia Cristofori, Anna Fantinati   +4 more
wiley   +1 more source

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

Chemistry – A European Journal, EarlyView.
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, Thomas R. Talbot IV, Matthias Zeller, Davin G. Piercey   +3 more
wiley   +1 more source