Oxygen-17 nuclear magnetic resonance spectral investigation of 3-alkoxy-trans-3,4-disubstituted-thiolane 1,1-dioxides and related compounds
摘要:
AbstractThe 17O NMR spectra of 3‐alkoxythiolane 1,1‐dioxides indicate that the sulfonyl oxygens are diastereotopic but their chemical shift differences are essentially independent of the structure of the alkyl group in the alkoxy moiety. Eu(fod)3 enhances the 17O chemical shift differences between the diastereotopic sulfonyl oxygens in 3‐isopropoxythiolane 1,1‐dioxide and shifts both oxygens upfield. α,β‐Unsaturation deshields the sulfonyl oxygens in both five‐ and six‐membered rings.
Process for separating acid-containing gas mixtures
申请人:Solvay SA
公开号:EP2705893A1
公开(公告)日:2014-03-12
A process for reversibly removing at least one acid from a gas mixture comprising at least one acid and at least one of a carbonyl dihalide, a phosphoryl trihalide, a phosphorous pentafluoride, and an acid halide is provided. The process comprises contacting the gas mixture with a solvent comprising a sulphone compound.
ELECTROLYTE SOLUTION FOR ELECTROCHEMICAL DEVICES, ALUMINUM ELECTROLYTIC CAPACITOR, AND ELECTRIC DOUBLE LAYER CAPACITOR
申请人:SUMITOMO SEIKA CHEMICALS CO., LTD.
公开号:US20150076389A1
公开(公告)日:2015-03-19
The present invention aims to provide an electrolyte solution for electrochemical devices, which has excellent thermal stability and high decomposition voltage and produces a small amount of evaporation at high temperatures. The present invention also aims to provide an aluminum electrolytic capacitor and an electric double layer capacitor, both of which include the electrolyte solution for electrochemical devices. The present invention relates to an electrolyte solution for electrochemical devices, the electrolyte solution including a solvent and an electrolyte, the solvent containing a sulfone compound represented by the formula (1):
wherein R represents a C
1-6
alkyl group.