CuBr2@Zr-MOF catalyst as well as preparation method and application thereof

A catalyst and reaction technology, used in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., which can solve the problem of little research on "click" reactions

Inactive Publication Date: 2019-06-21
长治学院
View PDF10 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, remarkable achievements have been made in organic reactions catalyzed by MOFs heterogeneously, but there are few studies on the "click" reactions catalyzed by MOFs.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • CuBr2@Zr-MOF catalyst as well as preparation method and application thereof
  • CuBr2@Zr-MOF catalyst as well as preparation method and application thereof
  • CuBr2@Zr-MOF catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Accurately weigh ZrCl into a 100mL pressure-resistant tube 4 (212mg), 2,2′,5,5′-dipyridinedicarboxylic acid (H 2 bpydc) (220 mg) was dissolved in 40 mL of DMF, stirred at room temperature for 5 minutes, added 10 mL of glacial acetic acid to the system, ultrasonicated for 20 minutes, and the uniformly dispersed system was heated in an oven at 120°C, taken out after 48 hours, and cooled to At room temperature, a white powdery solid was obtained. The product was washed with DMF, water and acetone three times in sequence, and then dried in vacuum at 100°C to obtain Zr-MOF with a yield of about 60%. Characterized by PXRD, the results are shown in figure 1 .

[0032] Weigh Zr-MOF (100 mg), CuBr 2 (65mg) was added into 15mL water, and the mixture was stirred at room temperature for 4 hours to obtain a green powder, which was washed with water and acetone three times in sequence, and dried in vacuum at 100°C. The product was collected for PXRD characterization and ICP test. ...

Embodiment 2

[0034] Accurately weigh ZrCl into a 100mL pressure-resistant tube 4 (212mg), 2,2′,5,5′-dipyridinedicarboxylic acid (H 2 bpydc) (210mg) was dissolved in 40mL DMF, stirred at room temperature for 5 minutes, 10mL glacial acetic acid was added to the system, ultrasonicated for 20 minutes, the uniformly dispersed system was heated in an oven at 100°C, taken out after 48 hours, and cooled to At room temperature, a white powdery solid was obtained. The product was washed with DMF, water, and acetone three times in sequence, and dried in vacuum at 100° C. to obtain Zr-MOF with a yield of about 50%.

[0035] Weigh Zr-MOF (100 mg), CuBr 2 (62 mg) was added into 15 mL of water, and the mixture was stirred at room temperature for 4 hours to obtain a green powder, which was washed with water and acetone three times in turn, and dried in vacuum at 105°C. The product was collected for PXRD characterization and ICP test. The results are shown in figure 1 .

Embodiment 3

[0037] Accurately weigh ZrCl into a 100mL pressure-resistant tube 4 (212mg), 2,2′,5,5′-dipyridinedicarboxylic acid (H 2 bpydc) (200mg) was dissolved in 40mL DMF, stirred at room temperature for 5 minutes, added 10mL glacial acetic acid to the system, ultrasonicated for 20 minutes, put the uniformly dispersed system in a 150°C oven to heat, took it out after 48 hours, and cooled to At room temperature, a white powdery solid was obtained. The product was washed with DMF, water and acetone three times in sequence, and dried in vacuum at 110°C to obtain Zr-MOF with a yield of about 45%.

[0038] Weigh Zr-MOF (100 mg), CuBr 2 (60mg) was added into 15mL water, and the mixture was stirred at room temperature for 4 hours to obtain a green powder, which was washed with water and acetone three times in turn, and dried in vacuum at 105°C. The product was collected for PXRD characterization and ICP test. The results are shown in figure 1 .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a CuBr2@Zr-MOF catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: loading CuBr2 with high catalytic activity into a Zr-MOFs skeleton with high stability to prepare a catalyst CuBr2@Zr-MOF with heterogeneous catalytic potential; determining the loading capacity of a catalyst structure and center metal copper ions through powder test and ICP test; exploring the catalytic property on three-component 'clicking' reaction among phenylboronic acid, sodium azide and phenylacetylene; performing universality inspection on arylboronic acid and alkyne containing various substituent groups; and through heterogeneous catalytic validation, discovering that the catalytic activity is not reduced obviously after thecatalyst is reused for four times, and expanding application of the CuBr2@Zr-MOF in the field of construction of organic heterocyclic ring through heterogeneous catalytic synthesis.

Description

technical field [0001] The present invention relates to a kind of click reaction catalyst, specifically CuBr 2 The @Zr-MOF catalyst and its preparation method and application belong to the field of catalyst preparation and application. Background technique [0002] 1,2,3-Triazoles are a class of important five-membered aromatic heterocyclic compounds containing three nitrogen atoms. Due to their unique structure and chemical properties, they are widely used in many fields such as medicine, material science and organic chemistry. application value. But so far, triazole compounds have not been isolated from natural products, but obtained by artificial synthesis. The most widely used method for the synthesis of these compounds is the 1,3-dipolar cycloaddition reaction from alkyne-azides. [0003] Numerous reports have shown that Cu(I) / Cu(II) homogeneous catalysts are indispensable for 1,3-dipolar cycloaddition reactions. However, the reaction system catalyzed by simple copp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/30C07D249/06
Inventor 张淑萍苏静周成勇
Owner 长治学院
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap