ChemInform Abstract: An Efficient and Rapid Intramolecular Aza-Michael Addition of 2′-Aminochalcones Using Ionic Liquids as Recyclable Reaction Media.

ChemInform ◽  
2012 ◽  
Vol 43 (47) ◽  
pp. no-no
Author(s):  
M. Chelghoum ◽  
M. Bahnous ◽  
A. Bouraiou ◽  
S. Bouacida ◽  
A. Belfaitah
Keyword(s):  
Ionic Liquids ◽  
Michael Addition ◽  
Reaction Media

scholarly journals Ionic Liquids: Efficient Media for the Lipase-Catalyzed Michael Addition

Molecules ◽  
2018 ◽  
Vol 23 (9) ◽  
pp. 2154 ◽  
Author(s):  
Yunchang Fan ◽  
Dongxu Cai ◽  
Xin Wang ◽  
Lei Yang
Keyword(s):  
Ionic Liquids ◽  
Lipase Activity ◽  
Michael Addition ◽  
Alkyl Chain ◽  
Hydroxyl Group ◽  
Domain Formation ◽  
High Chemical ◽  
Chemical Structures ◽  
Reaction Media ◽  
High Chemical Stability

Recently, ionic liquids (ILs) have been regarded as ideal media for non-aqueous bio-catalysis. In this work, the synthesis of warfarin by the lipase-catalyzed Michael addition in IL media and the parameters that affected the warfarin yield were investigated. Experimental results demonstrated that the chemical structures of the ILs were a major factor for influencing the warfarin yield. The ILs containing the NTf2– anion were suitable reaction media due to the high chemical stability of this anion. The incorporation of the hydroxyl group on the IL cation significantly improved the lipase activity due to the H2O-mimicking property of this group. The lipase activity decreased by increasing the alkyl chain length on the IL cation due to the non-polar domain formation of the IL cation at the active site entrance of lipase. The ILs and lipase could be reused no less than five times without reduction in the warfarin yield.

An efficient and rapid intramolecular aza-Michael addition of 2′-aminochalcones using ionic liquids as recyclable reaction media

2012 ◽  
Vol 53 (32) ◽  
pp. 4059-4061 ◽  
Author(s):  
M. Chelghoum ◽  
M. Bahnous ◽  
A. Bouraiou ◽  
S. Bouacida ◽  
A. Belfaitah
Keyword(s):  
Ionic Liquids ◽  
Michael Addition ◽  
Reaction Media

Synthesis, Characterization and Applications of Dicationic Ionic Liquids in Organic Synthesis

2020 ◽  
Vol 17 (4) ◽  
pp. 450-464
Author(s):  
Mohammad Javaherian ◽  
Seyyed Jafar Saghanezhad
Keyword(s):  
Ionic Liquids ◽  
Organic Synthesis ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Dicationic Ionic Liquids ◽  
Physical And Chemical ◽  
Reaction Media ◽  
And Chemical Properties

Dicationic ionic liquids are an emerging group of Ionic Liquids (ILs) that are currently receiving much attention as green reaction media and catalysts. Because of a great number of possible combinations of cations and anions, the physical and chemical properties of dicationic ionic liquids are more tunable and broader than monocationic ILs. Therefore, their unique properties have made them the target of many applied and fundamental researches. Actually, dicationic ionic liquids are more effective and rather fascinating than traditional monocationic ILs. So, due to greater versatility and diversity, their applications in organic synthesis have been extensively grown. In this review, we have focused on the synthesis, characterization and applications of dicationic ionic liquids, especially, in organic synthesis.

Ionic liquids and supercritical carbon dioxide: green and alternative reaction media for chemical processes

2016 ◽  
Vol 32 (6) ◽  
Author(s):  
Ruixia Liu ◽  
Peng Zhang ◽  
Suojiang Zhang ◽  
Ting Yan ◽  
Jiayu Xin ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquids ◽  
Supercritical Carbon Dioxide ◽  
Chemical Processes ◽  
Reaction Media ◽  
Supercritical Carbon

AbstractIonic liquids (ILs) and supercritical CO

Synthesis of new chiral ionic liquids from natural acids and their applications in enantioselective Michael addition

2005 ◽  
Vol 46 (27) ◽  
pp. 4657-4660 ◽  
Author(s):  
Zhiming Wang ◽  
Qiang Wang ◽  
Yu Zhang ◽  
Weiliang Bao
Keyword(s):  
Ionic Liquids ◽  
Michael Addition ◽  
Chiral Ionic Liquids

Synthesis of organophosphorus compounds using ionic liquids

2018 ◽  
Vol 34 (5) ◽  
pp. 727-740 ◽  
Author(s):  
Lavinia Macarie ◽  
Nicoleta Plesu ◽  
Smaranda Iliescu ◽  
Gheorghe Ilia
Keyword(s):  
Ionic Liquids ◽  
Organophosphorus Compounds ◽  
Inorganic Compounds ◽  
Green Solvents ◽  
High Solubility ◽  
Chemical Reagents ◽  
Reaction Media ◽  
Organophosphorus Chemistry ◽  
Synthesis Reactions ◽  
Toxic Organic Solvents

Abstract Organophosphorus chemistry was developed in the last decade by promoting the synthesis reactions using ionic liquids either as solvent or catalyst. Ionic liquids (ILs), the so-called “green solvents”, have gained interest in the synthesis of organophosphorus compounds as alternatives to flammable and toxic organic solvents and catalysts. ILs have beneficial properties because they provide high solubility for many organic and inorganic compounds or metal complexes, have no vapor pressure, and are reusable. Also, in some cases, they can enhance the reactivity of chemical reagents. In this review, we aimed at showing the synthesis of different organophosphorus compounds under green and mild conditions using ILs as reaction media or catalysts, according to a trend developed in the last years. A novel trend is to perform these syntheses under microwave irradiation conditions together with ILs as solvents and catalysts.

scholarly journals Thio-Michael addition of α,β-unsaturated amides catalyzed by Nmm-based ionic liquids

RSC Advances ◽  
2017 ◽  
Vol 7 (68) ◽  
pp. 43104-43113 ◽  
Author(s):  
Yawei Liu ◽  
Zhenzhen Lai ◽  
Pengkun Yang ◽  
Yuanqing Xu ◽  
Wenkai Zhang ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Michael Addition

Most substrates work well for this transformation in water, and the IL-catalyst is recyclable and applicable for gram-scale synthesis.

Nmp-based ionic liquids: Recyclable catalysts for both hetero-Michael addition and Knoevenagel condensation in water

2018 ◽  
Vol 48 (9) ◽  
pp. 1060-1067 ◽  
Author(s):  
Pengkun Yang ◽  
Yawei Liu ◽  
Ling Chai ◽  
Zhenzhen Lai ◽  
Xiaomin Fang ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Michael Addition ◽  
Knoevenagel Condensation ◽  
Recyclable Catalysts
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