Results 121 to 130 of about 12,877,669 (294)

Design, Synthesis, Trypanocidal Activity, and Studies on Human Album in Interaction of Novel S-Alkyl-1,2,4-triazoles

open access: yes, 2019
Chagas disease is a neglected tropical disease caused by the hemoflagellated parasite Trypanosoma cruzi (Kinetoplastida). The only available drug to treat chagasic patients in Brazil, the nitroheterocycle benznidazole, is effective solely during the ...
Otávio A. Chaves (5670620)   +10 more
core   +1 more source

Metal-Free Click Synthesis of Functional 1-Substituted-1,2,3-Triazoles

open access: yes, 2019
The 1,2,3-triazole group is one of the most important connective linkers and functional aromatic heterocycles in modern chemistry. The boom in growth of, in particular, 1,4-disubstituted triazole products since the early 2000’s, can be largely attributed
Marie-Claire Giel (7462496)   +6 more
core   +1 more source

Azide–alkyne cycloaddition (click) reaction in biomass-derived solvent CyreneTM under one-pot conditions

open access: yesBeilstein Journal of Organic Chemistry
It was demonstrated that CyreneTM, as a biomass-originated polar aprotic solvent, could be utilized as an alternative reaction medium for one-pot copper(I)-catalyzed azide–alkyne cycloaddition (click or CuAAC) reactions, for the synthesis of various 1,2 ...
Zoltán Medgyesi, László T. Mika
doaj   +1 more source

Regioselective synthesis and antimicrobial evaluation of some thioether–amide linked 1,4-disubstituted 1,2,3-triazoles

open access: yes, 2016
A series of 1,4-disubstituted 1,2,3-triazoles having thioether as well as amide linkage were synthesized from aryl(prop-2-yn-1-yl)sulfanes and 2-azido-N-substituted acetamides through Cu(I) catalyzed click reaction.
C. P. Kaushik (748698)   +3 more
core   +1 more source

Antimicrobial Screening of Some Newly Synthesized Triazoles

open access: yes, 2017
The study deals with the synthesis and evaluation of some novel triazoles. Amine linked triazoles were prepared through multistep syntheses. 4-Iodobenzoic acid was taken as initial reactant material, which was converted into methyl ester, then to ...
Jeetendra Gupta   +2 more
core   +1 more source

Aza‐Büchner–Curtius–Schlotterbeck Reaction Enables Selective Construction of Quaternary Carbon Centers

open access: yesAngewandte Chemie International Edition, EarlyView.
We introduce the Aza‐Büchner–Curtius–Schlotterbeck (ABCS) reaction: A mild, catalyst‐free method for homologating aryl imines. Diverging from the traditional BCS mechanism, the diazo intermediate undergoes selective C─C insertion to form an all‐carbon quaternary center.
Simon O. Angerer   +6 more
wiley   +1 more source

Activation of Metal Complexes With Ultrasound Waves for Targeted Anticancer Therapy

open access: yesAngewandte Chemie International Edition, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean   +3 more
wiley   +1 more source

An aqueous medium synthesis and tautomerism study of 3(5)-amino-1,2,4-triazoles

open access: yes, 2009
A catalyst-free highly efficient synthesis of 3(5)-amino-5(3)-(het)aryl-1,2,4-triazoles in aqueous mediumwas performed using conventional heating and microwave irradiation.
W. Chui (23304466)   +3 more
core  

Copper-Catalyzed Three-Component Reaction of Alkynes, TMSN3, and Ethers: Regiocontrollable Synthesis of N1- and N2‑Oxyalkylated 1,2,3-Triazoles

open access: yes, 2019
A new copper-catalyzed selective synthesis of N1- and N2-oxyalkylated 1,2,3-triazoles has been developed through a three-component reaction of alkynes, TMSN3, and ethers. Through this methodology, a series of N1- and N2-oxyalkylated 1,2,3-triazoles could
Pengli Bao   +11 more
core   +1 more source

A Ruthenium(CAAC‐5) Olefin Metathesis Catalyst for Bioconjugation

open access: yesAngewandte Chemie International Edition, EarlyView.
The aqueous instability of ruthenium catalysts restricts olefin metathesis in biological media. A Ru(CAAC‐5) complex bearing an aniline handle is reported that remains active under biologically relevant conditions and enables bioconjugation to proteins, peptides, and an artificial metalloenzyme, providing a robust platform for olefin metathesis in ...
Damian Alexander Graf   +4 more
wiley   +1 more source

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