- Perfluoroalkanesulfonylimids and their lithium salts: Synthesis and characterisation of intermediates and target compounds
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ECF processes have been extensively experienced and developed since early 1970s at the Fluorine Chemistry Laboratory of Padua University: several classes of perfluorinated inert and functional compounds have been obtained, in particular perfluoro heterocyclics and perfluorinated acid fluorides.Recently the demand for electrolyte salts, applied in lithium batteries, drove our interest to investigate on the perfluoroalkanesulfonylimides.A series of the perfluoroalkanesulfonylfluoride precursors has been obtained by ECF and their metathesis to the related imides and lithium salts has been investigated.A number of representative products has been obtained and characterized in their structure and ionic conductivity.
- Conte, Lino,Gambaretto, Gian Paolo,Caporiccio, Gerardo,Alessandrini, Fabrizio,Passerini, Stefano
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p. 243 - 252
(2007/10/03)
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- A comparative study of the electrochemical fluorination (ECF) of 1 ,n-alkanebis (sulfonylfluorides) (n = 1-3 )
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Synthetic methods for the preparation of α,ω-alkanebis(sulfonylfluorides) and their electrochemical fluorination (ECF) are described in detail. Factors affecting the yield of the perfluoro-α,ω-alkanebis(sulfonylfluorides) are also discussed. Spectral data (13C and 19F NMR and mass spectra) and other hitherto unknown physical properties of difluoromethanebis(sulfonylfluoride) (1), 1,1,2,2-tetrafluoroethane-1,2-bis(sulfonylfluoride) (2) and 1,1,2,2,3,3-hexafluoropropane-1,3-bis(sulfonylfluoride) (3) are measured and compared. Elsevier Science S.A.
- Jueschke, Ralf,Velayutham, David,Sartoria, Peter
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p. 145 - 149
(2007/10/03)
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- Die elektrochemische fluorierung von alkansulfonamiden und alkandisulfonamiden
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Alkane sulphonylamides and disulphonylamides are stable in anhydrous (HF)x and undergo quantitative fission of S-N bonds during electrochemical fluorination. Besides NF3, the corresponding perfluoroalkane sulphonyl fluorides and disulphonyl fluorides are formed.
- Satori,Juenger
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- A useful synthesis of ω-iodoperfluoroalkanesulfonyl fluorides and perfluoroalkane-α,ω-bis-sulfonyl fluorides
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ω-Iodoperfluoroalkanesulfonyl fluorides and perfluoroalkane-α,ω-bis-sulfonyl fluorides have been prepared via deiodosulfination, chlorination, and then chlorine-fluorine exchange reaction of α,ω-diiodoperfluoroalkanes I(CF2)nI (n=3, 4, 6).Similar reaction of I(CF2)2O(CF2)2SO2F affords FSO2(CF2)2O(CF2)2SO2F.
- Qiu, Weiming,Burton, Donald J.
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- SYNTHESIS OF PERFLUOROPROPANE-1,3-DISULFONIC ACID AND PERFLUOROBUTANE-1,4-DISULFONIC ACID
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Perfluoropropane-1,3-disulfonic acid, HO3S-(CF2)3-SO3H, and perfluorobutane-1,4-disulfonic acid, HO3S-(CF2)4-SO3H, have been prepared electrochemically from the alkanedisulfonyl difluorides.Whereas perfluoroalkanemonosulfonyl fluorides can easily be prepared via electrochemical fluorination the situation with disulfonyl difluorides is somewhat more difficult.NMR data are reported for all compounds.
- Herkelmann, R.,Sartori, P.
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p. 299 - 308
(2007/10/02)
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