Synthesis and characterization of click-decahydrodecaborate derivatives by the copper(I) catalyzed [3+2] azide-alkyne cycloaddition reaction

2018 ◽  
Vol 865 ◽  
pp. 89-94 ◽  
Author(s):  
Suzan El Anwar ◽  
Zahra Laila ◽  
Ron Ramsubhag ◽  
Sami Tlais ◽  
Ali Safa ◽  
...  
Keyword(s):  
Cycloaddition Reaction ◽  
Synthesis And Characterization

Synthesis and characterization of new H-shaped triphenylene discotic room-temperature liquid crystal tetramers by a copper-free click reaction

2018 ◽  
Vol 42 (1) ◽  
pp. 272-280 ◽  
Author(s):  
Kan Zhang ◽  
Yuefeng Bai ◽  
Chun Feng ◽  
Guanghui Ning ◽  
Hailiang Ni ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Room Temperature ◽  
Click Reaction ◽  
Cycloaddition Reaction ◽  
Synthesis And Characterization ◽  
Discotic Liquid Crystal ◽  
Temperature Liquid

A series of new H-shaped triphenylene discotic liquid crystal tetramers has been designed and synthesized using a copper-free [3+2] cycloaddition reaction.

Synthesis and Characterization of Novel Phenoxy-Substituted Enediyne-Triazole-Conjugates Using Click Chemistry

2020 ◽  
Vol 17 ◽  
Author(s):  
Mukesh C. Joshi
Keyword(s):  
Click Chemistry ◽  
Aqueous Medium ◽  
Aqueous Media ◽  
Cycloaddition Reaction ◽  
Synthesis And Characterization

: Novel group of phenoxy-substituted enediyne-triazole-conjugates were synthesized by Huisgen [3+2] cycloaddition reaction (Click chemistry) in aqueous media. The author found that enediynes were stable in aqueous medium and open air conditions.

scholarly journals Synthesis and Characterization of Some New Nucleoside Analogues from Substituted Benzimidazole via 1,3-Dipolar cycloaddition

2016 ◽  
Vol 13 (2) ◽  
pp. 298-306
Author(s):  
Baghdad Science Journal
Keyword(s):  
Benzoic Acid ◽  
Benzimidazole Derivative ◽  
Cycloaddition Reaction ◽  
Nucleoside Analogues ◽  
Dipolar Cycloaddition ◽  
Synthesis And Characterization ◽  
Propargyl Bromide ◽  
Sugar Moiety ◽  
Ft Ir

This paper includes the synthesis of some new nucleoside analogues starting with 2-substituted benzimidazole derivative (7-9), that synthesized by condensation of O-phenylenediamine with p-chloro benzaldehyde and two substituted benzoic acid , which on nucleophilic substitution with propargyl bromide gave a new N-substituted compounds (10-12). D-Fructose and D-galactose were chosen as a sugar moiety which were protected, brominated and azotated to give azido sugars (5) and (6), then they were subjected to 1,3-dipolar cycloaddition reaction with N-substuted compounds afforded bloked nucleoside analoges (13-16), which after hydrolysis gave our target the free nucleoside analogues (17-20). All prepared compounds were identified by FT-IR and some of them with 1H-NMR and 13C-NMR.

scholarly journals Synthesis and Characterization of the Structure of Diethyl [(4-{(1H-Benzo[d]Imidazol-1-yl)Methyl}-1H-1,2,3-Triazol-1-yl)(Benzamido)Methyl]Phosphonate Using 1D and 2D NMR Experiments

2021 ◽  
Vol 2 (1) ◽  
pp. 1-7
Author(s):  
F. Serigne Abdou Khadir ◽  
S. Boukhssas ◽  
S. Achamlale ◽  
Y. Aouine ◽  
A. Nakkabi ◽  
...  
Keyword(s):  
Click Chemistry ◽  
Cycloaddition Reaction ◽  
2D Nmr ◽  
Sodium Ascorbate ◽  
Synthesis And Characterization ◽  
Two Dimensional ◽  
Ethanol Mixture ◽  
Solvent Water ◽  
Pure Product

The biheterocyclic derivative of the phosphonic glycine analogue is prepared selectively by reaction between the α-azidoamino diethyl methylphosphonate and the 1-(prop-2-yn-1-yl)-1H-benzo[d]imidazole. The dipolar -1,3 cycloaddition reaction using Click Chemistry was carried out in a solvent water/ethanol mixture in a ratio of 1:1. Copper sulphate pentahydrate and sodium ascorbate are used in the reaction in catalytic amounts. The compound [diethyl [{4-[(1H-benzo[d]imidazol-1-yl)methyl]-1H-1,2,3-triazol-1-yl}(benzamido) methyl] phosphonate was isolated pure as a white powder, after chromatography on a silica gel column (ethyl acetate/hexane acetate: 1/1). The yield of pure product is 90%, after recrystallization in an ether/hexane mixture. The structure of the -1,4 isomer is attributed to the compound obtained by means of 1D and 2D NMR and based on data from the literature concerning the cycloaddition reaction via Click Chemistry. Two-dimensional NMR spectroscopy played a major role. The analysis of the different correlations between adjacent hydrogens and carbons, and also between hydrogens and distant carbons, confirmed the proposed structure.

Synthesis and Characterization of the Three Dicyclopentapyrenes

1996 ◽  
Vol 61 (10) ◽  
pp. 3572-3572
Author(s):  
Lawrence T. Scott ◽  
Atena Necula
Keyword(s):  
Synthesis And Characterization
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