Fluorous bispidine: a bifunctional reagent for copper-catalyzed oxidation and knoevenagel condensation reactions in water

RSC Advances ◽  
2015 ◽  
Vol 5 (99) ◽  
pp. 81415-81428 ◽  
Author(s):  
Wei Jie Ang ◽  
Yong Sheng Chng ◽  
Yulin Lam
Keyword(s):  
Knoevenagel Condensation ◽  
Aerobic Oxidation ◽  
Mild Conditions ◽  
Condensation Reactions ◽  
Catalyzed Oxidation

Fluorous bispidine-type ligands have been developed to demonstrate its bifunctional property as a ligand and base in copper-catalyzed aerobic oxidation, the Knoevenagel condensation and tandem oxidation/condensation in water under mild conditions.

A bifunctional covalent organic framework as an efficient platform for cascade catalysis

2017 ◽  
Vol 1 (7) ◽  
pp. 1310-1316 ◽  
Author(s):  
Qi Sun ◽  
Briana Aguila ◽  
Shengqian Ma
Keyword(s):  
Catalytic Properties ◽  
Knoevenagel Condensation ◽  
Aerobic Oxidation ◽  
Covalent Organic Framework ◽  
Condensation Reactions ◽  
Organic Framework ◽  
Cascade Catalysis

A covalent organic framework bearing pyridine moieties, which serves as a promising platform for cascade catalysis, exhibits extraordinary catalytic properties as exemplified by aerobic oxidation–Knoevenagel condensation reactions.

scholarly journals A Ru-Complex Tethered to a N-Rich Covalent Triazine Framework for Tandem Aerobic Oxidation-Knoevenagel Condensation Reactions

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 838
Author(s):  
Geert Watson ◽  
Parviz Gohari Derakhshandeh ◽  
Sara Abednatanzi ◽  
Johannes Schmidt ◽  
Karen Leus ◽  
...  
Keyword(s):  
Active Sites ◽  
Noble Metals ◽  
Heterogeneous Catalysts ◽  
Knoevenagel Condensation ◽  
Condensation Reaction ◽  
Aerobic Oxidation ◽  
Catalyst Support ◽  
Catalytic Performance ◽  
Condensation Reactions ◽  
Covalent Triazine Framework

Herein, a highly N-rich covalent triazine framework (CTF) is applied as support for a RuIII complex. The bipyridine sites within the CTF provide excellent anchoring points for the [Ru(acac)2(CH3CN)2]PF6 complex. The obtained robust RuIII@bipy-CTF material was applied for the selective tandem aerobic oxidation-Knoevenagel condensation reaction. The presented system shows a high catalytic performance (>80% conversion of alcohols to α, β-unsaturated nitriles) without the use of expensive noble metals. The bipy-CTF not only acts as the catalyst support but also provides the active sites for both aerobic oxidation and Knoevenagel condensation reactions. This work highlights a new perspective for the development of highly efficient and robust heterogeneous catalysts applying CTFs for cascade catalysis.

Knoevenagel Condensation Reactions of Cyano Malononitrile-Derivatives Under Microwave Radiation

2018 ◽  
Vol 22 (6) ◽  
pp. 519-532 ◽  
Author(s):  
Lucas Lima Zanin ◽  
David Esteban Quintero Jimenez ◽  
Luis Pina Fonseca ◽  
Andre Luiz Meleiro Porto
Keyword(s):  
Microwave Radiation ◽  
Knoevenagel Condensation ◽  
Condensation Reactions

Organic–inorganic hybrids having a talc-like structure as suitable hosts to guest a wide range of species

2018 ◽  
Vol 47 (9) ◽  
pp. 2925-2932 ◽  
Author(s):  
J. Brendlé
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Step Method ◽  
Mild Conditions ◽  
Condensation Reactions ◽  
Wide Range ◽  
Sol Gel Process ◽  
Hydrolysis And Condensation ◽  
One Step

The sol–gel process involving hydrolysis and condensation reactions is an attractive way to form siloxane based hybrid materials since it is a one-step method performed under mild conditions.

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