ChemInform Abstract: Design, Preparation and Characterization of a New Ionic Liquid, 1,3-Disulfonic Acid Benzimidazolium Chloride, as an Efficient and Recyclable Catalyst for the Synthesis of Tetrahydropyridine under Solvent-Free Conditions.

ChemInform ◽  
2016 ◽  
Vol 47 (1) ◽  
Author(s):  
Mohsen Abbasi
Keyword(s):  
Ionic Liquid ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
Disulfonic Acid ◽  
Solvent Free Conditions

Design, preparation and characterization of a new ionic liquid, 1,3-disulfonic acid benzimidazolium chloride, as an efficient and recyclable catalyst for the synthesis of tetrahydropyridine under solvent-free conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (83) ◽  
pp. 67405-67411 ◽  
Author(s):  
Mohsen Abbasi
Keyword(s):  
Ionic Liquid ◽  
Mass Spectra ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
Disulfonic Acid ◽  
H Nmr ◽  
Solvent Free Conditions ◽  
Ft Ir ◽  
C Nmr

In the present work, 1,3-disulfonic acid benzimidazolium chloride as a new ionic liquid, is synthesized, and characterized by studying its FT-IR, 1H NMR, 13C NMR as well as mass spectra.

Synthesis and Characterization of a Novel Ionic Liquid Based on N,N,N,N-tetramethylethylenediamine and its Application in the Synthesis of 1,8-dioxo-octahydro Xanthenes

2018 ◽  
Vol 21 (7) ◽  
pp. 526-532 ◽  
Author(s):  
Zahra Abdi Piralghar ◽  
Mohammad Mahmoodi Hashemi ◽  
Ali Ezabadi
Keyword(s):  
Ionic Liquid ◽  
Chlorosulfonic Acid ◽  
Solvent Free ◽  
Aryl Aldehydes ◽  
Acidic Ionic Liquid ◽  
Brønsted Acidic Ionic Liquid ◽  
Solvent Free Conditions ◽  
Aryl Aldehyde ◽  
High Yields

Aim and Objective: In this work, we synthesized and characterized a novel Brönsted acidic ionic liquid from the reaction of N, N, N’, N’-tetramethylethylenediamine with chlorosulfonic acid and explored its catalytic activity in 1, 8-dioxo-octahydroxanthenes synthesis. Materials and Methods: Dimedone, aryl aldehydes, and the ionic liquid as the catalyst were reacted under solvent-free conditions. The progressive of the reaction was monitored by a thin layer of chromatography (ethyl acetate/n-hexane = 1/5). All products were characterized as the basis of their spectra data and melting point by comparison with those reported in the literature. Results: The prepared ionic liquid was successfully applied in the synthesis of 1, 8-dioxooctahydroxanthenes in good to high yields on the reaction of aryl aldehyde and dimedone at 120oC under solvent-free conditions. Conclusion: This research demonstrates that the catalyst is impressive for 1, 8-dioxo-octahydroxanthenes synthesis under solvent-free conditions.

Tetra-butylphosphonium arginine-based ionic liquid-promoted cyclization of 2-aminobenzonitrile with carbon dioxide

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15668-15673 ◽  
Author(s):  
Xian-Dong Lang ◽  
Shuai Zhang ◽  
Qing-Wen Song ◽  
Liang-Nian He
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquid ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
Amino Groups ◽  
Solvent Free Conditions

Tetra-butylphosphonium arginine-based IL able to activate both amino-groups and CO2 proved to be an efficient and recyclable catalyst for the synthesis of quinazoline-2,4(1H,3H)-diones from 2-aminobenzonitriles and CO2 under solvent-free conditions.

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