n-(diphenylphosphino)triethyl- and tributylammonium salts are introduced as easily prepared, cheap and stable ionic liquids that act as the condensing agent and media for the efficient esterification of acids with alcohols and phenols. this class of ionic liquids is immiscible with the ester products and thus allows simple and easy separation of the desired products from the reaction mixture.

The nature of ionic liquids (ILs) facilitates their analysis by ion chromatography which, unlike conventional high-performance liquid chromatography, enables analysis both of cations and anions. This paper describes a pioneering ion-chromatographic investigation of IL cations and statistical evaluation of quantitative structure-retention relationships with the objective of predicting the molecu...

a simple and mild method for tetrahydropyranylation of alcohols is reported at room temperature using a catalytic amount of 3-methylimidazolinium hydrogensulfate([hmim]hso4) as a green, efficient and reusable catalyst. using solvent-free conditions, non-toxic and inexpensive materials, modest and clean work-up, short reaction times and high yields of the products are the advantages of this method.

This study represent the synthesis and electrical conductivity of two focused dicationic pyridinium ionic liquids (DiILs) carrying tetrafluoroborate and/or hexafluorophosphate as counter anion. Thus, required quaternization pyridine nitrogen atoms first, followed by a metathetical exchange reaction to produce task-specific ILs bearing anions. The resulting DiILs were characterized NMR MS spectr...

This paper studied the effect of pyridinium-based ionic liquids as cosolvents in a methanol-water solvent system on hydrolytic activity Candida rugosa lipase. These were successfully synthesized using imidazolium-based liquid synthesizing methods with certain adjustment. The lipase was analyzed 4-nitrophenol acetate (pNPA) and palmitate (pNPP) substrates. addition had no significant water solve...

Latest advances of ionic liquids (ILs) have allowed to a new application on the dissolution calcium carbonate (CaCO3) scales where CaCO3 scale deposition seriously severe threat in petroleum field. In this study, molecular interaction between and ILs n-pyridinium chloride [NPy][Cl] was studied experimentally order get better understanding during scale. NMR FTIR spectroscopy used study solution ...