77381-68-1Relevant academic research and scientific papers
Dialkylimidazolium dimethyl phosphates as solvents and catalysts for the Knoevenagel condensation reaction
Zicmanis, Andris,Anteina, Liene
supporting information, p. 2027 - 2028 (2014/04/03)
The reaction between benzaldehyde and ethyl cyanoacetate is investigated in 1,3-dialkylimidazolium salts as solvents. The impact of both ions in these ionic liquids on the yield of the condensation reaction product is examined. Potentiometric titrations a
A simple halide-to-anion exchange method for heteroaromatic salts and ionic liquids
Alcalde, Ermitas,Dinares, Immaculada,Ibanez, Anna,Mesquida, Neus
experimental part, p. 4007 - 4027 (2012/07/28)
A broad and simple method permitted halide ions in quaternary heteroaromatic and ammonium salts to be exchanged for a variety of anions using an anion exchange resin (A- form) in non-aqueous media. The anion loading of the AER (OH- form) was examined using two different anion sources, acids or ammonium salts, and changing the polarity of the solvents. The AER (A- form) method in organic solvents was then applied to several quaternary heteroaromatic salts and ILs, and the anion exchange proceeded in excellent to quantitative yields, concomitantly removing halide impurities. Relying on the hydrophobicity of the targeted ion pair for the counteranion swap, organic solvents with variable polarity were used, such as CH3OH, CH3CN and the dipolar nonhydroxylic solvent mixture CH3CN:CH2Cl 2 (3:7) and the anion exchange was equally successful with both lipophilic cations and anions.
Ionic liquid-based routes to conversion or reuse of recycled ammonium perchlorate
Cordes, David B.,Smiglak, Marcin,Hines, C. Corey,Bridges, Nicholas J.,Dilip, Meghna,Srinivasan, Geetha,Metlen, Andreas,Rogers, Robin D.
experimental part, p. 13441 - 13448 (2010/06/11)
New, potentially green, and efficient synthetic routes for the remediation and/or re-use of perchloratebased energetic materials have been developed. Four simple organic imidazolium- and phosphonium-based Perchlorate salts/ionic liquids have been synthesi
Imidazolium ionic liquids: A simple anion exchange protocol
Dinares, Immaculada,Garcia De Miguel, Cristina,Ibanez, Anna,Mesquida, Neus,Alcalde, Ermitas
supporting information; experimental part, p. 1507 - 1510 (2010/06/11)
An efficient and simple protocol was developed to obtain quantitative iodide or bromide exchange for a broad range of anions in imidazolium ionic liquids. Selected anions were loaded in an anion exchange resin using two different procedures and were then used to provide a pure convenient ion pair. The Royal Society of Chemistry 2009.
THE CHELETROPIC FRAGMENTATION OF HYPERVALENT THREE-MEMBERED THIAHETEROCYCLIC INTERMEDIATES
Zoller, Uri
, p. 7413 - 7426 (2007/10/02)
Lithio-imidazolium salts 10, generated in-situ from N'N-dimethylimidazolium salts 9, readily undergo sulfonylation with sulfur dioxide, sulfines, N-sulfinylamines, and thiirane.The resulting zwitterionic species 4 fragment thermally to yield the corresponding imidazolium thione 5 with the hypervalent three-membered thiaheterocyclic intermediates 3 connecting 4 and 5 on the reaction surface.The non-linear cheletropic fragmentation of these relatively stable hypervalent sulfuranes appears to be general for this class of compounds (3 or 4), and the experimental results are in accord with theoretical considerations.
