Chemical ligation of long synthetic alkyne and azide functionalised oligonucleotides by the CuAAC reaction is a new strategy for overcoming the size limit of DNA and RNA synthesised by solid-phase phosphoramidite chemistry. Remarkably, the latest triazole linker formed by this method (Fig. 1a) is correctly readthrough by DNA polymerases and is functional in bacteria. In order to investigate the...

2D coordination cyanometallic frameworks supported by the 1,2,3-triazole ligand display thermally induced cooperative spin crossover.

In this work the pharmacological study and synthesis of new thiadiazine bearing on triazole which obtained from hippuric acid , indomethacin mefenamic that have carboxylic moiety, Drugs with groups thiocarbohydrazide interacted to produce 4-amino-5-aryl-4H-1,2,4-triazole-3-thiol (1a-c).
 starting products 4-amino-5-aryl-4H-1,2,4-triazole-3-thiol) were treated chloroacetyl chloride final (2...

Molecules with tuneable properties are well known for their applications in the material and bio-medical fields; nevertheless, structural functional tunability makes them more significant diverse applications. Herein, we designed synthesized a novel class of star-shaped molecules via incorporating two important groups, i.e., triazole dithiocarbamate (DTC). The rationale behind selecting these k...

Abstract Resolving the regioselectivity of N-position on nitrogen-rich heterocycles is an important task in synthesis high energy density materials (HEDMs). In this work we developed a simple two-step route to introduce 1,2,4-triazole into 4-nitro-1,2,3-triazole N2-position, which shows excellent regioselectivity. The target compound 4-nitro-2-(1 H -1,2,4-triazol-3-yl)-1,2,3-triazole (3) was ch...

Regioselective synthesis of quinolone-1,2,4-triazoles was established starting from 4-hydroxyquinol-2-ones. The strategy started by the reaction ethyl bromoacetate with 4-hydroxyquinoline to give corresponding oxoquinolinyl acetates, which reacted hydrazine hydrate afford hydrazide derivatives. Subsequently, hydrazides isothiocyanate derivatives acyl thiosemicarbazides. Finally, subjecting thio...

The reaction of CoCl2.6H2O, 1,2,4-triazole, and H(2)O at 200 degrees C for 96 h yields purple rods of [Co2(trz)3Cl] (1; trz = 1,2,4-triazolate) in 90% yield. The structure of 1 consists of {Co(trz)3}n(n-) chains of Co(II) sites linked through tetrahedral sites of {CoN(3)Cl} geometry into a three-dimensional framework. The competing antiferromagnetic interactions of the octahedral and tetrahedra...

A kind of spin crossover-macromolecule polymer composite material, [Fe(NH(2)trz)(3)(ClO(4))(2)]-PVP (NH(2)trz is 4-amino-1,2,4-triazole and PVP is polyvinylpyrrolidone), appears as homogeneous film with a regular structure in nano-scale and shows the spin crossover (SC) phenomenon.

In the reaction of (2,4-dioxothiazolidin-5-yl)acetyl chloride with 1,2,4-triazole, 4-phenyl-1,2,4-triazolin-5-one and 4-phenyl-1,2,4-triazolin-5-thione, the new corresponding amides (2-4) were obtained. For compounds 2 and 4 effects on central nervous system (CNS) of mice were studied.

Generation of azomethine imine and its scope in regioselective 1,3-dipolar cycloaddition (DC) of imine with PhIO toward highly substituted Delta(2)-1,2,4-triazoline, 1,2,4-triazole, and their fused, chiral, and sugar-based analogues are demonstrated.