1467-16-9Relevant articles and documents
The influence of hydrogen-bond defects on the properties of ionic liquids
Peppel, Tim,Roth, Christian,Fumino, Koichi,Paschek, Dietmar,Koeckerling, Martin,Ludwig, Ralf
, p. 6661 - 6665 (2011)
Counterintuitive: The preformation of ion pairs can explain the low melting points of imidazolium-based ionic liquids (ILs) and the resulting expanded range of working temperatures. This quasi-ion-pair formation is possible for ILs having cations with only one interaction site leading to local and directional hydrogen bonds with the corresponding anion (see structure; O red, N blue, F green, S yellow). Copyright
Novel room temperature ionic liquids and low melting mixtures based on imidazolium: Cheap ionic solvents for chemical and biological applications
Aryafard, Meysam,Minofar, Babak,Cséfalvay, Eva,Malinová, Lenka,?eha, David
, (2021/11/09)
Novel protic ionic liquids (PILs) and low melting mixtures (LMMs) have been synthesized based on green components, cheap sources, the high purity, and easy way of preparation. PILs include [Im][For], [Im][Ace], [Im][Pro], [Im][But], and [Im][Pen]. LMMs include [ImCl][EG], [ImCl][Gly], [ImCl][PEG], [ImCl][ETA], and [ImCl][carbohydrate] + DMSO. These solvents contain imidazolium/imidazolium chloride as a cation/salt. NMR spectroscopy was used to analyze the structures of solvents. Melting points, and thermal stabilities were measured via thermal analyses. We were looking to synthesize new DESs with imidazolium chloride (ImCl); Due to lack of observation the melting points for mixtures of ImCl + hydrogen bond donors (HBDs), these mixtures were called low melting mixtures (LMMs) in this work. The mixtures of PILs/LMMs with molecular solvents showed good implications for homogenous and heterogenous systems which can be used for separation goals. Solubilities of carbohydrates, and some amino acids were tested in pure and mixed of ILs with molecular liquids. Adding DMSO to ILs/LMMs increased the dissolution of carbohydrates. As well, adding water to ILs had a remarkable effect for increasing the solubility of amino acids.
A Simple synthesis of sugar nucleoside diphosphates by chemical coupling in water
Tanaka, Hidenori,Yoshimura, Yayoi,Jürgensen, Malene R.,Cuesta-Seijo, Jose A.,Hindsgaul, Ole
, p. 11531 - 11534 (2013/01/15)
Sugar nucleotides made easy: The new reagent ImIm , which is formed in-situ in water, is shown to activate nucleoside 5'-phosphates to their imidazolides, these can subsequently couple with sugar-1-phosphates; the whole procedure takes place in water. This truly simple method yields a crude product mixture that can be used directly as a source of donors for glycosyltransferase- mediated oligsaccharide synthesis. In the scheme, B stands for the nucleobases U, A, or G. Copyright
