5137-55-3Relevant articles and documents
IONIC LIQUID COMPOSITION AND SOLVENT CONTAINING THE SAME
-
Paragraph 0052-0054; 0056, (2018/10/16)
PROBLEM TO BE SOLVED: To provide an ionic liquid composition satisfying high flowability and high hydrophobic property. SOLUTION: There is provided the ionic liquid composition containing at least one kind of solid organic salt having a melting point of 70°C or more and at least one kind of liquid organic salt having a melting point of 30°C or less, the solid organic salt and the liquid organic salt having a same cationic part or a same anionic part, the ionic liquid composition has a moisture content of 1 to 50 mass%, a water/n-octanol calculated distribution coefficient (LogP) of 0.5 or more and a viscosity of 3 Pa s or less at 25°C. SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT
Triphasic liquid systems for improved separations. Trioctylmethylammonium chloride-immobilised rhodium trichloride: A phosphine-free hydroformylation catalytic system
Paganelli, Stefano,Perosa, Alvise,Selva, Maurizio
, p. 1858 - 1862 (2008/09/17)
A liquid triphasic system made of isooctane, water, and trioctylmethylammonium chloride allows one to carry out the hydroformylation of model olefins using neat RhCl3 as catalyst precursor. By using the triphasic system, the catalyst is kept separate from the reagents and products. This allows one to simply remove the product and to recycle the catalyst numerous times. No leaching of rhodium into the organic phase is observed.
Triphasic liquid systems: Generation and segregation of catalytically active Pd nanoparticles in an ammonium-based catalyst-philic phase
Perosa, Alvise,Tundo, Pietro,Selva, Maurizio,Canton, Patrizia
, p. 4480 - 4482 (2008/09/18)
A triphasic liquid system fabricated from isooctane, aqueous base, and trioctylmethylammonium chloride/decanol promoted the formation of Pd-nanoparticles in the size range of 2-4 nm which remained immobilised in the onium phase, catalysed organic reactions, and could be recycled. The Royal Society of Chemistry 2006.
Process for preparing 2-amino-1,3-alkanediol or derivative thereof, process for preparing optically active dihydrosphingosine derivative, and intermediates for optically active dihydrosphingosine derivative
-
, (2008/06/13)
A process for preparing an optically active dihydrosphingosine derivative is disclosed, comprising reducing a (2R,3R)-2-amino-3-hydroxyalkanoic acid derivative represented by formula (III): STR1 wherein R3 represents a straight-chain alkyl group having 7 to 21 carbon atoms; and R4 represents an amino group protecting group, (e.g., (2R,3R)-2-benzylamino-3-hydroxyoctadecanoic acid) with sodium tetrahydroborate in the presence of an acid. The process makes it feasible to produce an optically active dihydrosphingosine at high optical purity and through a simple process that is safe and easy to industrialize.
Process for preparing 2-amino-1, 3-alkanediol or a derivative thereof, process for preparing optically active dihydrosphingosine derivatives and intermediates used in that process
-
, (2008/06/13)
A process for preparing an optically active dihydrosphingosine derivative, comprising reducing a (2R,3R)-2-amino-3-hydroxyalkanoic acid derivative represented by formula (III): wherein R3represents a straight-chain alkyl group having 7 to 21 carbon atoms; and R4represents an amino group protecting group,(e.g., (2R,3R)-2-benzylamino-3-hydroxyoctadecanoic acid) with sodium tetrahydroborate in the presence of an acid. The process of the invention makes it feasible to produce an optically active dihydrosphingosine at high optical purity and provides a simple process that is safe and easy to industrialize.
6,7-(epithio)-3,7-dimethyl-1,3-octadiene and use thereof in augmenting or enhancing aroma of perfume compositions, colognes and perfurmed articles
-
, (2008/06/13)
Described are the 6,7-(epithio)-3,7-dimethyl-1,3-octadienes having the structures STR1 and mixtures of same as well as the uses thereof in augmenting or enhancing the aroma or perfume compositions, colognes and perfumed articles including but not limited to solid or liquid anionic, cationic, nonionic or zwitterionic detergents, cosmetic powders, hair preparations and the like.
Effect of Water on the Extraction and Reactions of Fluoride Anion by Quaternary Ammonium Phase-Transfer Catalysts
Dermeik, Salman,Sasson, Yoel
, p. 879 - 882 (2007/10/02)
The maximum conversion of the fluoride-chloride exchange reaction RCl + KF -> RF + KCl catalyzed by quaternary onium salts was found to be strongly dependent on the water content of the inorganic salt.A maximum conversion was obtained when the potassium fluoride contained 0.33 mol of water per mol of KF.This phenomenon is due to better extraction of the fluoride anion when the KF is drier, offset by decomposition of the catalyst in the absence of water.It was shown that the selectivity constant KselCl/F is dependent on composition of the inorganic salt and on temperature.Rate measurements indicate that the mechanism proposed by Starks for liquid-liquid exchange reactions is valid also in a solid-liquid process which is also chemically controlled.
Catalytic aromatic carbonate process
-
, (2008/06/13)
An improved catalytic aromatic carbonate process which comprises contacting under substantially anhydrous reaction conditions a phenol, carbon monoxide, an oxidant, a base, and the Group VIIIB element selected from ruthenium, rhodium, palladium, osmium, iridium or platinum. The resulting aromatic mono- and poly-carbonates are useful in the preparation of polycarbonates or as polycarbonates per se, respectively, which can be molded or formed into films, sheets, fibers, laminates or reinforced plastics by conventional techniques.
Substituted-1-acetyl-3,3-dimethylcyclohexane
-
, (2008/06/13)
Described in a genus of substituted 1-acetyl-3,3-dimethylcyclohexanes having the structure: STR1 wherein R1 or one or both of R2 and/or R3 is methallyl and the other of R1 or R2 and/or R3 is hydrogen, a process for preparing same by means of reacting a methallyl halide with acetyl-3,3-dimethylcyclohexane using a phase transfer agent and in a two phase system according to the reaction: STR2 wherein X is chloro or bromo, processes for adding such 1-acetyl-3,3-dimethylcyclohexane derivatives to consumable materials whereby: (i) In foodstuffs and medicinal products, fatty, sweet, fruity, citrus, green and vegetable-like aromas and fatty, sweet, fruity, citrus, vegetable-like and waxy flavor characteristics are augmented or enhanced; (ii) In perfumes and perfumed articles, green, herbaceous, melony and fruity aromas with galbanum-like, ginger-like and citrusy nuances are imparted, augmented and/or enhanced; and (iii) In tobaccos and tobacco flavors, green, sweet, fruity, floral and Virginia tobacco-like flavor and aroma nuances are augmented and/or enhanced in the mainstream and in the sidestream on smoking and, in addition, prior to smoking and flavor composition, perfume compositions and tobacco articles and foodstuffs and perfumed articles containing such 1-acetyl-3,3-dimethylcyclohexane derivatives.
