Synthesis and click modification of an azido-functionalized Zr(iv) metal–organic framework and a catalytic study

RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 893-900 ◽  
Author(s):  
Xiu-Chun Yi ◽  
Fu-Gui Xi ◽  
Yan Qi ◽  
En-Qing Gao
Keyword(s):  
Knoevenagel Condensation ◽  
Metal Organic Framework ◽  
Base Catalyst ◽  
Click Reactions ◽  
Metal Organic ◽  
Organic Framework

A new azido-functionalized Zr(iv) MOF was synthesized and further functionalized via post-synthetic click reactions, and the amino-tagged MOF is a base catalyst for Knoevenagel condensation.

An Efficient and Reusable Multifunctional Composite Magnetic Nanocatalyst for Knoevenagel Condensation

Synlett ◽  
2019 ◽  
Vol 30 (06) ◽  
pp. 699-702 ◽  
Author(s):  
Yu Hu ◽  
Nan Yao ◽  
Jin Tan ◽  
Yang Liu
Keyword(s):  
Active Sites ◽  
Heterogeneous Catalysts ◽  
Knoevenagel Condensation ◽  
Metal Organic Framework ◽  
Catalytic Performance ◽  
Significant Loss ◽  
Magnetic Nanocatalyst ◽  
Metal Organic ◽  
Nife2o4 Nanoparticles ◽  
Organic Framework

A range of multifunctional magnetic metal–organic framework nanomaterials consisting of various mass ratios of the metal–organic framework MIL-53(Fe) and magnetic SiO2@NiFe2O4 nanoparticles were designed, prepared, characterized, and evaluated as heterogeneous catalysts for the Knoevenagel condensation. The as-fabricated nanomaterials, especially the nanocatalyst MIL-53(Fe)@SiO2@NiFe2O4(1.0), showed good catalytic performance in the Knoevenagel condensation at room temperature as a result of synergistic interaction between the Lewis acid iron sites of MIL-53(Fe) and the active sites of the magnetic SiO2@NiFe2O4 nanoparticles. In addition, the heterogeneous catalyst was readily recovered and a recycling test showed that it could be reused for five times without significant loss of its catalytic activity, making it economical and environmentally friendly.

scholarly journals A Novel Composite of Ionic Liquid-containing Polymer and Metal-organic Framework as an Efficient Catalyst for Ultrasonic-assisted Knoevenagel Condensation

2021 ◽  
Author(s):  
Samahe Sadjadi ◽  
Fatemeh Koohestani ◽  
Majid M. Heravi
Keyword(s):  
Ionic Liquid ◽  
Knoevenagel Condensation ◽  
Metal Organic Framework ◽  
Reaction Times ◽  
Elemental Mapping ◽  
Efficient Catalyst ◽  
Ultrasonic Assisted ◽  
Metal Organic ◽  
High Yields ◽  
Organic Framework

Abstract 1-Butyl-3-vinylimidazolium chloride was synthesized and polymerized with acrylamide to furnish an ionic liquid-containing polymer, which was then used for the formation of a composite with iron-based metal-organic framework. The resultant composite was characterized with XRD, TGA, FE-SEM, FTIR, EDS and elemental mapping analyses and its catalytic activity was appraised for ultrasonic-assisted Knoevenagel condensation. The results confirmed that the prepared composite could promote the reaction efficiently to furnish the corresponding products in high yields in very short reaction times. Moreover, the composite exhibited high recyclability up to six runs. It was also established that the activity of the composite was higher compared to pristine metal-organic framework or polymer.

scholarly journals An amino-modified Zr-terephthalate metal–organic framework as an acid–base catalyst for cross-aldol condensation

2011 ◽  
Vol 47 (5) ◽  
pp. 1521-1523 ◽  
Author(s):  
Frederik Vermoortele ◽  
Rob Ameloot ◽  
Alexandre Vimont ◽  
Christian Serre ◽  
Dirk De Vos
Keyword(s):  
Aldol Condensation ◽  
Metal Organic Framework ◽  
Base Catalyst ◽  
Acid Base ◽  
Metal Organic ◽  
Organic Framework
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