137959-33-2

Upstream product

• 102437-79-6 1,2-bis(azidomethyl)benzene 
• 536-74-3 phenylacetylene 
• 612-12-4 o-Xylylene dichloride 
• 91-13-4 α,α'-dibromo-o-xylene 

Relevant academic research and scientific papers

Synthesis and characterization of a new poly(N–heterocyclic carbene Cu complex) immobilized on nano–silica, (CuII–NHCs)n@nSiO2, and its application as an efficient and reusable catalyst in the synthesis of benzimidazoles,

The present study describes the synthesis and characterization of a new poly(N–heterocyclic carbene Cu complex) immobilized on nano silica, (CuII–NHCs)n@nSiO2. The (CuII–NHCs)n@nSiO2 dendri

Copper(II)-Schiff Base Complex-Functionalized Polyacrylonitrile Fiber as a Green Efficient Heterogeneous Catalyst for One-Pot Multicomponent Syntheses of 1,2,3-Triazoles and Propargylamines

A series of copper(II)-Schiff bases-functionalized polyacrylonitrile fiber catalysts were successfully prepared using copper acetate as copper source and characterized by elemental analysis, fourier-transfer infrared spectroscopy, ultraviolet-visible spectroscopy, X-ray photoelectron spectroscopy and inductively coupled plasma analysis. Excellent physical strength and thermal stability of the fiber catalysts were demonstrated by scanning electron microscopy, X-ray diffraction, thermogravimetric/differential scanning calorimetry analysis and mechanical strength measurements. Furthermore, these catalysts were successfully applied to one-pot multicomponent copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction and aldehyde, alkyne, amine (A3) coupling reaction in which the influences of different substituent groups on the catalytic activities of fiber catalysts were investigated in detail. Among them, the bis[N-ethyl-3,5-di-tert-butyl-salicylideneiminato]copper(II)-functionalized polyacrylonitrile fiber (PANS2F?Cu) as a green, efficient catalyst exhibited the best catalytic activity for its high hydrophobic micro-environment can aggregate the reactants to the catalytic sites and accelerate the reaction. In addition, the PANS2F?Cu has performed well in scaled-up experiment and shown excellent recyclability (at least ten times), and these enable it to have great potential for further applications. (Figure presented.).

Nanocomposite copper metal as an efficient heterogeneous catalyst in click synthesis of 1,2,3-triazoles in aqueous media

Copper/periodic mesoporous organosilica (Cu/PMO) nanocomposites provided a highly active, reusable, globular, solid-phase catalyst for click chemistry. The reaction proceeds by mixing organohalides, sodium azide, alkyne, and the catalyst in an aqueous medium to afford the desired products. The cost efficiency and recyclability of the catalyst up to six runs without appreciable loss of activity and high yields of products make this procedure greener.

Copper(II) bis-thiazole complex immobilized on silica nanoparticles: Preparation, characterization and its application as a highly efficient catalyst for click synthesis of 1,2,3-triazoles

In this work, the preparation of copper(II) complex of 3,5-bis(2-benzothiazolyl)pyridine, Cu(II)Br2-BTP, supported on nano silica functionalized with trimethoxysilylpropylchloride, Cu(II)Br2-BTP@TMSP-nSiO2, is reported. Th

Polystyrene-supported ionic liquid copper complex: A reusable catalyst for one-pot three-component click reaction

Copper(II) complex of 1,2-bis(4-pyridylthio)ethane immobilized on polystyrene was a used as a highly stable, active, reusable and green catalyst for click synthesis of 1,2,3-triazoles via one-pot three-component reaction of organic halides, sodium azide a

Synthesis of 1,4-disubstituted 1,2,3-triazoles via a three-component reaction in water in the presence of CuX (X = Cl, I)

(Chemical Equation Presented) Three-component reaction of alkyl halides, sodium azide and alkynes in water in the presence of CuX (X = Cl, I) afforded 1,4-disubstituted 1,2,3-triazoles in high yields. These reactions do not require any special precautions or existence of a reducing agent. The bistriazoles formed during the reaction can efficiently enhance the catalytic activity of the Cu(I) salts.

DIPOLAR CYCLOADDITION REACTIONS OF ORGANIC BIS-AZIDES WITH SOME ACETYLENIC COMPOUNDS

The reactions of 1,2-, 1,3- and 1,4-bis(azidomethyl)benzenes 1a-c with dimethyl, diethyl and di-tert-butyl acetylenedicarboxylates 2-4 as well as with phenylacetylene 8 and ethyl propiolate 12 are reported.These reactions have afforded the corresponding b