677-67-8Relevant articles and documents
Improvement of procedures for preparing Tetrafluoroethane-β-sultone and fluorocarbonyldifluoromethanesulfonyl fluoride
Barabanov,Bispen,Kornilov,Moldavskii,Odinokov,Fenichev
, p. 619 - 623 (2014)
Synthesis of tetrafluoroethane-β-sultone by the reaction of tetrafluoroethylene with sulfuric anhydride and of fluorocarbonyldifluoromethanesulfonyl fluoride by catalytic reaction of tetrafluoroethylene with sulfuric anhydride using BAU-2, SKT-6, or AG-3 activated carbon as catalyst was studied. The possibility of replacing sulfuric anhydride prepared by distillation from oleum by sulfuric anhydride prepared by sulfur dioxide oxidation was demonstrated.
A method for manufacturing a solid ammonium salt compd.
-
Paragraph 0098-0100, (2016/12/07)
PROBLEM TO BE SOLVED: To produce an ammonium salt compound which is useful as an intermediate of an acid generator and is in solid state. SOLUTION: There is provided a method for producing a compound in solid state represented by formula (I), including: bringing one or more solvents which cause phase separation from water into contact with a compound in liquid state represented by formula (I), wherein Q1and Q2each independently represents a fluorine atom or a 1C-6C perfluoroalkyl group, R represents an organic group, and Z1to Z3each independently represents a hydrogen atom or a 1C-12C aliphatic hydrocarbon group, etc. COPYRIGHT: (C)2011,JPOandINPIT
PROCESS FOR THE PRODUCTION OF WATER-SOLUBLE FLUORINE -CONTAINING VINYL ETHERS
-
Page/Page column 8, (2008/06/13)
The present invention relates to a method for producing a water-soluble fluorine-containing vinyl ether which comprises subjecting a fluorine-containing 2-alkoxypropionic acid derivative represented by the following general formula (I): (wherein A represents -OM1 or -OM21/2, and M1 represents an alkali metal and M2 represents an alkaline earth metal; X represents a halogen atom; Y1 and Y2 are the same or different and each represents a fluorine atom, a chlorine atom, a perfluoroalkyl group or a fluorochloroalkyl group; n represents an integer of 0 to 3, and n of Y1s may be the same or different; m represents an integer of 1 to 5, and m of Y2s are the same or different; and Z represents a hydrophilic group) to thermal decomposition at a temperature of not lower than 50°C but lower than 170°C in the presence of a coordinating organic solvent to give a water-soluble fluorine-containing vinyl ether represented by the general formula (II): (wherein Y1, Y2, Z, n and m are as defined above),???said coordinating organic solvent having a coordinating property with an ion of said M1 or an ion of said M2???said coordinating organic solvent being in an amount of 10 to 1,000 parts by mass per 100 parts by mass of the fluorine-containing 2-alkoxypropionic acid derivative.
Synthesis of 3,6-dioxa-δ7-4-trifluoromethyl sulfonimide: Bis[(perfluoroalkyl)sulfonyl] superacid monomer and polymer
Thomas, Brian H.,Shafer, Gregory,Ma, Jing Ji,Tu, Ming-Hu,DesMarteau, Darryl D.
, p. 1231 - 1240 (2007/10/03)
A new type of ion exchange polymer, bis[(perfluoroalkyl)sulfonyl]imide ionomers (PFSI), were developed by the copolymerization of sodium 3,6-dioxa-Δ7-4-trifluoromethyl perfluorooctyl trifluoromethyl sulfonimide with tetrafluoroethylene (TFE) using an aqueous redox initiation system in an emulsion type polymerization. These polymers have been prepared in various equivalent weights and processed into functional membranes. The new ionomers exhibit excellent chemical and thermal stability. The materials have high potential for electrochemical applications especially as solid polymer electrolytes (SPE) in proton exchange membrane (PEM) fuel cells.
Fluorinated olefins and oleum
Cheburkov, Yuri,Lamanna, William M.
, p. 147 - 152 (2007/10/03)
Oleum has some advantages over pure sulfur trioxide and may be successfully used for preparation of beta-sultones from hexafluoropropene, 2H-pentafluoropropene, 6H-perfluoro-1-hexene and perfluoro(propylvinyl) ether (VE). Depending on the reaction conditi
Synthesis, characterization, and ion-conductive behavior in an organic solvent and in a polyether of a novel lithium salt of a perfluorinated polyimide anion
Tokuda, Hiroyuki,Muto, Shunsuke,Hoshi, Nobuto,Minakata, Takashi,Ikeda, Masanori,Yamamoto, Fumihiko,Watanabe, Masayoshi
, p. 1403 - 1411 (2007/10/03)
To achieve highly conductive polymer electrolytes with a controllable ionic transference number, a novel polymeric lithium salt was synthesized and characterized. The novel lithium salt of a perfluorinated polyimide anion, poly(5-oxo-3-oxy-4-trifluoromethyl-1,2,4-pentafluoropentylene sulfonylimide lithium) (LiPPI), has a polyanionic backbone with a repeating unit resembling highly dissociable, thermally and electrochemically stable imide salts, such as lithium bis(trifluoromethylsulfonyl)imide (LiTFSI). The ion-conductive behavior of LiPPI in an organic solvent and in a polyether was extensively studied by using pulse-gradient spin-echo NMR, in addition to differential scanning calorimetry, complex impedance measurement, and dynamic mechanical analysis. Solutions of LiPPI in ethylene carbonate (EC) exhibited a high degree of dissociation and high ionic conductivity, and the self-diffusion coefficient of the anion was lower than that of the cation. Solvent-free polymer electrolytes were prepared by dissolving LiPPI in a matrix polyether to afford a compatible polymer alloy, and the ionic conductivity of the new polymer alloy electrolytes reached ca. 10-5S cm-1 at 30°C. Although the lithium ionic transference number in the organic electrolyte solution was approximately the same as that of LiTFSI in EC, the polymer alloy electrolyte gave an apparent transference number higher than 0.7, which was considerably higher than that of LiTFSI in the same polyether.
Ueber die Reaktion von Chlortrifluorethen mit Schwefeltrioxid
Gille, E.,Hass, D.,Holfter, H.,Schoenherr, M.
, p. 145 - 150 (2007/10/02)
Chlorotrifluorethane β-sultone has been synthesized in good yield by bubbling chlorotrifluorethene (CTFE) through liquid sulfur trioxide at atmospheric pressure.By treatment of the sultone with catalytic amounts of triethylamine, quantitative rearrangement to four different fluoroacetylsulfuric acid halides, i.e.F(O)C-CF2-SO2F, F(O)C-CFCl-SO2F, F(O)C-CF2-SO2Cl and F(O)C-CFCl-SO2Cl, occurred.These products were partially separated by fractional distillation.Their concentrations were established from determinations of hydrolyzable halogen and 19F nuclear magnetic resonance spectra.These results confirm that the reaction of CTFE with sulfur trioxide gives approximately equal amounts of the two possible isomeric sultones: which rearrange to fluorodihaloacetylsulfonic acid halides by cyclic mechanism, followed by an F(-)/Cl(-) exchange at the sulfonyl halide groups. - Keywords: Chlorofluorethene; Reaction; Sulfur trioxide; β-Sultone formation; NMR spectroscopy
NEW POLYFLUOROALKOXYSULFONYL FLUORIDES (II)
Chen, Li-Fo,Mohtasham, Javid,Gard, Gary L.
, p. 39 - 56 (2007/10/02)
The reaction of cyclo-CF2-CF2-O-S(O2)- with haloalkanes (RX, X=I,Br) in the presence of metal fluorides, MF (M=Cs+,Ag+) was studied as a means for preparing novel reactive polyfluoroalkoxysulfonyl fluorides.The following compounds have been prepared and characterized: ROCF2CF2SO2F where R = cyclo-O-CH2-CH(-)-CH2, (CH3)3SiCH2, (CF3)2CFCH2CH2, HCC-CH2, BrCH=CHCH2 (cis and trans), CH2=CBrCH2, (CH3CH2O)2P(O)CH2CH2, CH3CH2OPF(O)CH2CH2.Infrared, mass and nmr spectra are presented in order to support the assigned structures.
NEW POLYFLUOROALKOXYSULFONYL FLUORIDES (I)
Chen, L. F.,Mohtasham, J.,Gard, G. L.
, p. 21 - 38 (2007/10/02)
The reaction of cyclo-CF2-CF2-O-S(O2)- with haloalkanes (RX, X=Cl,Br,I) in the presence of metal fluorides, MF (M=K+,Cs+,Ag+) was studied as a means for preparing novel reactive polyfluoroalkoxysulfonyl fluorides.The following compounds have been prepared and characterized: ROCF2CF2SO2F where R = CF2=CFCH2CH2, SF5CH2CH2, -CH2-, -CH2-CH2-, CH3CH2CH2, BrCH2CH2, CH2=CHCH2, CH2=CHC(O).Infrared, mass and nmr spectra are presented in order to support the assigned structures.
NEW POLYFLUOROALKOXYSULFONYL FLUORIDES, PART IV. AROMATIC DERIVATIVES
Chen, Li-Fo,Mohtasham, Javid,Gard, Gary L.
, p. 331 - 347 (2007/10/02)
The reactions of C and with aromatic haloalkanes (RX, X = Br) in the presence of silver fluoride were studied as a means for preparing novel aromatic polyfluoroalkoxysulfonyl fluorides.The following compounds have been prepared and characterized: ROCF2CF2SO2F and ROCF2CF(CF3)SO2F, where R is C6H5CH2, o-(CF3)2C6H3CH2, C6F5CH2.Infrared, mass and nmr spectra are presented in order to support the assigned structure.In a comparative study, the reaction of with benzyl bromide, in the presence of different metal fluorides such as silver fluoride,cesium fluoride and tris(dimethylamino)sulfonium difluorotrimethylsilicate were investigated.In all cases decomposition products such as SO2F2, SOF2 and SO2 were obtained; no desired alkoxy product was found. Attempts to prepare the silver alkoxide salt, AgOCF2CFHSO2F or the corresponding aromatic alkoxy derivatives were unsuccessful.Apparently the intermediate silver salt is unstable and cannot be recovered or used for nucleophilic displacement reactions.
