Synthesis and applications of novel imidazole and benzimidazole based sulfonic acid group functionalized Brönsted acidic ionic liquid catalysts

Synthesis of Dicationic Ionic Liquids and their Application in the Preparation of Hierarchical Zeolite Beta

“…Ionic liquids (ILs) have been attracting considerable attention in recent times due to their unique properties, such as lack of measurable vapor pressure, non-flammability, catalytic activity, and recyclability. [21][22][23][24] Recent research showed that thermal degradation of monocationic ionic liquids occurs at temperature below 473 K. [25,26] Organic reactions at temperatures above 473 K requires ionic liquid with higher thermal stability. Most recently, a series of geminal dicationic ionic liquids with high thermal stability have been prepared.…”

The Biginelli Reaction Is a Urea-Catalyzed Organocatalytic Multicomponent Reaction

“…To enhance the efficiency of the process, different variations of the experimental conditions 23 were proposed: the use of catalysts such as Brönsted [40][41][42][43][44] or Lewis acids, 10,45-48 ionic liquids [49][50][51][52][53][54] or an excess of one reactant. 45,49,[55][56][57][58] Soon after its discovery, various mechanisms involving protonated intermediates were proposed, as shown in Figure 1.…”

Synthesis and thermal characterization of new ammonium–imidazolium dual dicyanamide-based ionic liquids

“…The main reason for this growing interest seems to lie in the opportunity to design their structures with respect to cations, anions, and length of linker chain between the two cations to achieve desired properties according to specific tasks [24][25][26].…”