Coumarin synthesis via Knoevenagel condensation reaction in 1,1,3,3-N,N,N′,N′-tetramethylguanidinium trifluoroacetate ionic liquid

2009 ◽  
Vol 6 (4) ◽  
pp. 710-714 ◽  
Author(s):  
A. Shaabani ◽  
R. Ghadari ◽  
A. Rahmati ◽  
A. H. Rezayan
Keyword(s):  
Ionic Liquid ◽  
Knoevenagel Condensation ◽  
Condensation Reaction ◽  
Knoevenagel Condensation Reaction ◽  
Coumarin Synthesis

scholarly journals Syntheses of ZnO with Different Morphologies: Catalytic Activity toward Coumarin Synthesis via the Knoevenagel Condensation Reaction

2019 ◽  
Vol 58 (9) ◽  
pp. 5703-5714 ◽  
Author(s):  
Md. R. Shakil ◽  
Andrew G. Meguerdichian ◽  
Habiba Tasnim ◽  
Alireza Shirazi-Amin ◽  
Mohammad S. Seraji ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Knoevenagel Condensation ◽  
Condensation Reaction ◽  
Knoevenagel Condensation Reaction ◽  
Coumarin Synthesis

scholarly journals An Efficient and Recyclable Ionic Liquid-Supported Proline Catalyzed Knoevenagel Condensation

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Chen Zhuo ◽  
Dong Xian ◽  
Wu Jian-wei ◽  
Xie Hui
Keyword(s):  
Ionic Liquid ◽  
Large Scale ◽  
Knoevenagel Condensation ◽  
Condensation Reaction ◽  
Attractive Alternative ◽  
Chromatographic Purification ◽  
Knoevenagel Condensation Reaction

The Knoevenagel condensation reaction of aldehydes with malononitrile was described in this study, which was catalyzed by an efficient and recyclable ionic liquid-supported proline. The method represented an attractive alternative to the classical synthesis strategies and exhibited the advantage of performing homogeneous chemistry on a large scale additionally avoided large excesses of reagents. The products were obtained in good yields and reasonable purities without the need for further chromatographic purification. Moreover, the catalyst could be reused for at least four times.

scholarly journals Solvent-free Knoevenagel reaction catalysed by reusable pyrrolidinium base protic ionic liquids (PyrrILs): synthesis of long-chain alkylidenes

RSC Advances ◽  
2017 ◽  
Vol 7 (6) ◽  
pp. 3214-3221 ◽  
Author(s):  
R. C. M. Alves Sobrinho ◽  
P. M. de Oliveira ◽  
C. R. Montes D'Oca ◽  
D. Russowsky ◽  
M. G. Montes D'Oca
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Knoevenagel Condensation ◽  
Condensation Reaction ◽  
Solvent Free ◽  
Knoevenagel Reaction ◽  
Protic Ionic Liquids ◽  
Knoevenagel Condensation Reaction ◽  
Pyrrolidinium Ionic Liquid ◽  
Long Chain

In this work, an efficient and reusable pyrrolidinium ionic liquid (PyrrIL) catalysis system was developed and used in a Knoevenagel condensation reaction of long-chain aldehydes with several 1,3-dicarbonyl compounds.

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