1000294-01-8

Upstream product

• 1000293-91-3 trimethyl(1,1,2,2-tetrafluoro-2-(phenylsulfanyl)ethyl)silane 
• 108-98-5 thiophenol 
• 83015-33-2 (2-bromo-1,1,2,2-tetrafluoroethylsulfanyl)benzene 

Downstream Products

• 1002724-04-0 N-benzyl-2-(phenylsulfanyl)-1,1,2,2-tetrafluoro-ethanesulfonamide 
• 1000294-09-6 2-benzenesulfonyl-1,1,2,2-tetrafluoroethanesulfonyl fluoride 
• 1000335-51-2 2-(phenylsulfanyl)-1,1,2,2-tetrafluoroethanesulfonic acid 
• 1002753-67-4 1-n-butyl-3-methylimidazolium 2-(phenylsulfanyl)-1,1,2,2-tetrafluoromethanesulfonate 
• 1002753-68-5 1-n-hexyl-3-methylimidazolium 2-(phenylsulfanyl)-1,1,2,2-tetrafluoroethanesulfonate 

Relevant academic research and scientific papers

Syntheses of a wide family of new aryl based perfluorosulfonimide lithium salts. Electrochemical performances of the related polymer electrolytes

This paper reports both on a general multistep synthesis of a wide family of aryl substituted perfluorosulfonimides and on a preliminary electrochemical investigation of two lithium salts hosted by a poly(oxyethylene) homopolymer. Both salts have a cationic transference number more than twice that of LiTFSI. Additionally, one of these salts exhibits markedly higher cationic conductivities than POE/LiTFSI electrolytes. These preliminary data are very encouraging as, thanks to the aryl moiety, a wide variety of salts can be considered in order to still improve the performances of polymer electrolytes.

AROMATIC SULPHONYLIMIDES, PREPARATION THEREOF AND USE THEREOF AS ELECTROLYTE

The invention relates to a process for preparing aromatic sulphonylimides, to the sulphonylimides obtained, and to the use thereof as salt of an electrolyte. The sulphonylimides correspond to the formula [R—SO2—N—SO2R′]rM (I). R′ is an ArZL- group. R′ is a perfluoroalkyl group or an ArZL- group. Z is an S, SO or SO2 group. L is a —(CF2)n—CFRf— group. n is 0 or 1; Rf represents F or a C1 to C8 perfluoroalkyl group; Ar is an aromatic group. M represents H, an alkali metal cation, an alkaline earth metal cation, a trivalent or tetravalent metal cation, or an organic cation. The process consists in preparing a compound RSO2N(R′)SO2R′ from RSO2F, and in replacing the group R′ by nucleophilic substitution reaction so as to obtain the compound (I), R′ being a benzyl or trimethylsilyl group.

New aryl-containing fluorinated sulfonic acids and their ammonium salts, useful as electrolytes for fuel cells or ionic liquids

Several aryl-containing ammonium sulfonates have been prepared either by cationic metathesis from the corresponding lithium sulfonates or from the corresponding sulfonic acids. The latter have been obtained by elution of an Amberlite resin with alcoholic

An efficient preparation of new sulfonyl fluorides and lithium sulfonates

(Formula Presented) An efficient preparation of several polyfluoroalkanesulfonyl fluorides is reported. This method, based on the synthesis of polyfluoroalkyl trimethyl silanes (precursors of polyfluoroalkylsulfinates) as intermediates, allows the successive transformations to be carried out in one pot. Moreover, these sulfonyl fluorides can be obtained from the corresponding sulfinates by electrophilic fluorination. This original approach avoids isolation and purification of some thermally or hydrolytically unstable intermediates. A series of new sulfonyl fluorides have been thus prepared from halogenodifluoromethylated precursors RCF2X (X = F, Br; R = ArC(O), ArS(O)n(CF2) m; n = 0, 1, 2; m = 1, 2) and have been transformed into the corresponding lithium sulfonates, which have potential applications as electrolytes for lithium batteries.