Results 101 to 110 of about 11,521 (228)

1, 3-Dipolar Cycloaddition (Part I): Synthesis of 1, 2, 3-Triazole Derivatives in Nucleoside Chemistry [PDF]

, 2015
Bakrom katalizirana Huisgenova 1, 3-dipolarna cikloadicija azida i terminalnih alkina kojom regioselektivno nastaju 1, 4-disupstituirani 1, 2, 3-triazoli često je primjenjivana metoda sintetske organske kemije.
Bajić, Miroslav, Krstulović, Luka, Saftić, Dijana, Žinić, Biserka   +3 more
core   +2 more sources

Synthesis of bi- and bis-1,2,3-triazoles by copper-catalyzed Huisgen cycloaddition: A family of valuable products by click chemistry

Beilstein Journal of Organic Chemistry, 2015
The Cu(I)-catalyzed azide-alkyne cycloaddition reaction, also known as click chemistry, has become a useful tool for the facile formation of 1,2,3-triazoles.
Zhan-Jiang Zheng, Ding Wang, Zheng Xu, Li-Wen Xu   +3 more
doaj   +1 more source

Heterociclos 1,2,3-triazólicos: histórico, métodos de preparação, aplicações e atividades farmacológicas 1,2,3-triazolic heterocycles: history, preparations, applications and pharmacological activities

Química Nova, 2006
The 1,2,3-triazole, known since the end of 19th century, is a very widely used heterocyclic system present in many synthetic substances and commercial pharmaceutical compounds.
Júlio O. F. Melo, Claudio Luis Donnici, Rodinei Augusti, Vitor F. Ferreira, Maria Cecília B. V. de Souza, Maria Lourdes G. Ferreira, Anna C. Cunha   +6 more
doaj   +1 more source

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

Copper(I)-catalyzed tandem reaction: synthesis of 1,4-disubstituted 1,2,3-triazoles from alkyl diacyl peroxides, azidotrimethylsilane, and alkynes

Beilstein Journal of Organic Chemistry, 2018
A copper-catalyzed azide–alkyne cycloaddition (CuAAC) reaction for the synthesis of 1,4-disubstituted 1,2,3-triazoles from alkyl diacyl peroxides, azidotrimethylsilane, and terminal alkynes is reported.
Muhammad Israr, Changqing Ye, Munira Taj Muhammad, Yajun Li, Hongli Bao   +4 more
doaj   +1 more source

A reação "click" na síntese de 1,2,3-triazóis: aspectos químicos e aplicações

Química Nova, 2011
The Copper-catalyzed azide-alkyne cycloaddition (CuAAC), often referred to as "click" reaction, has become a very popular reaction in the last years. It affords exclusively 1,4-disubstituted 1,2,3-triazoles and has been widely used to connect readily ...
Luiza Baptista de Oliveira Freitas, Fernando Armini Ruela, Guilherme Rocha Pereira, Rosemeire Brondi Alves, Rossimiriam Pereira de Freitas, Leandro José dos Santos   +5 more
doaj   +1 more source

Synthesis and Spectral Study of a New Family of 2,5-Diaryltriazoles Having Restricted Rotation of the 5-Aryl Substituent

Molecules, 2020
Efficient synthesis of 2,5-diaryl substituted 4-azido-1,2,3-triazoles by the reaction of sodium azide with dichlorosubstituted diazadienes was demonstrated.
Biligma Tsyrenova, Valentine Nenajdenko
doaj   +1 more source

4-Benzyl-1-(4-nitrophenyl)-1H-1,2,3-triazole: crystal structure and Hirshfeld analysis [PDF]

, 2017
The mol­ecule in the title compound, C15H12N4O2, has a twisted L-shape with the dihedral angle between the aromatic rings of the N-bound benzene and C-bound benzyl groups being 70.60 (9)°. The nitro group is co-planar with the benzene ring to which it is
Ali, Akbar, Dallasta Pedroso, Sofia, Sousa Madureira, Lucas, Tiekink, Edward R. T. *, Weber Paixão, Márcio, Zukerman-Schpector, Julio   +5 more
core   +2 more sources

Crystal structure of 2-((3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)methylene)-1H-indene-1,3(2H)-dione, C28H19N5O2 [PDF]

, 2016
C28H19N5O2, monoclinic, Cc (no. 9), a = 13.9896(9) Å, b = 21.9561(14) Å, c = 7.1643(5) Å, β = 91.782(6)°, V = 2199.5(3) Å3, Z = 4, R gt(F) = 0.0632, wR ref(F 2) = 0.1727, T = 150(2) K.
Abdel-Wahab, Bakr F., Alamri, Mesfer, El-Hiti, Gamal A., Hegazy, Amany S., Kariuki, Benson M.   +4 more
core   +3 more sources

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

Beilstein 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