Novel Ascorbic Acid Based Ionic Liquids for the In Situ Synthesis of Quasi-Spherical and Anisotropic Gold Nanostructures in Aqueous Medium
作者:Enakshi Dinda、Satyabrata Si、Atanu Kotal、Tarun K. Mandal
DOI:10.1002/chem.200800006
日期:2008.6.20
room temperature ionic liquids involves, first, the preparation of a 1-alkyl (such as methyl, ethyl, butyl, hexyl, octyl, and decyl) derivative of 3-methylimidazolium hydroxide followed by the neutralization of the derivatised product with ascorbic acid. These ionic liquids show significantly better thermalstability and their glass transition temperature (Tg) decreases with increasing alkyl chain length
New ionic liquids with fluorous anions for supported liquid membranes and characterization
作者:Etienne Jean、Didier Villemin、Laurent Lebrun
DOI:10.1016/j.jfluchem.2019.109365
日期:2019.11
reports the synthesis and the characterization of novel fluorous ionicliquids with fluorous anions to be used as carrier for fluorous supported liquid membrane in view of future applications to the extraction of metal ions. Dialkylimidazolium perfluorodialkylphosphate with C8, C10 and C12 phosphate chains have been synthetized as ionicliquid. The different dialkylimidazolium cations were prepared by microwave
IONIC ADDITIVE FOR CATALYSIS IN BIPHASIC REACTION SYSTEMS
申请人:Cole-Hamilton David
公开号:US20090318734A1
公开(公告)日:2009-12-24
An additive for improving the rate of catalysis in biphasic reaction systems is disclosed. The additive is an ionic molecule comprising an organic cation such as a heterocyclic compound or a quaternary ammonium or phosphonium cation, and an anion which may be organic or inorganic. A process for improved catalysis in an aqueous biphasic system wherein the catalyst is substantially dissolved in the aqueous phase and the substrate is substantially contained in the non-aqueous phase is also described. A suitable additive is 1-octyl-3-methylimidazolium halide. Examples of suitable catalytic reactions include the hydrogenation, hydrosilation, hydroboration, hydrovinylation, hydroformylation, oxidation and hydroxycarbonylation of alkenes, and Heck, Suzuki, Stille, and Sonigashira coupling.
Deciphering the anthelmintic activity of benzimidazolium salts by experimental and in-silico studies
作者:Prabodh Ranjan、Mohd Athar、Kari Vijayakrishna、Lalit K. Meena、Rajesh Vasita、Prakash C. Jha
DOI:10.1016/j.molliq.2018.07.029
日期:2018.10
ring in 1-methyl-3-alkylimidazolium. The current findings suggested that the activity of these salts depends on the nature of N-alkyl side-chain, anionic moieties, varying partial charge on quaternarynitrogen (due to different anions) lipophilicity and types of cationic core fused with imidazolium ring. These findings were complemented by the quantitative-structure-activity-relationship (QSAR), molecular