23451-79-8

Upstream product

• 76-13-1 1,1,2-Trichloro-1,2,2-trifluoroethane 
• 882-33-7 diphenyldisulfane 
• 79-38-9 Chlorotrifluoroethylene 
• 931-59-9 benzenesulfenyl chloride 
• 108-98-5 thiophenol 
• 930-69-8 sodium thiophenolate 
• 23451-78-7 1,2,2-trifluorovinyl phenyl sulfide 

Downstream Products

• 23454-08-2 1,2,2-Trifluor-2-<4-chlor-phenylsulfonyl>-1-phenylsulfonyl-ethan 
• 23451-81-2 phenyl trifluorovinyl sulfone 
• 23451-78-7 1,2,2-trifluorovinyl phenyl sulfide 

Relevant academic research and scientific papers

Chain-radical fluoroalkylation of thiophenols with freon ClCF2CFCl2 in the presence of sulfur dioxide

A polyfluoroalkylation of thiophenols with CF2ClCFCl2 using substituted pyridine-sulfur dioxide system enables to obtain fluoroalkylated thioethers by a SRN1-type free-radical route.

Process for the preparation of perhaloalkylthioethers

The present invention relates to a process for the preparation of perhaloalkylthioethers by bringing a perhaloalkyl halide, preferably a bromide or an iodide, into contact with a disulphide in the presence of zinc and of sulphur dioxide or of a dithionite or of a hydroxymethanesulphinate or of a formate anion and sulphur dioxide.

Reactions of Bromotrifluoromethane and Related Halides. Part 12. Transformation of Disulfides into Perfluoroalkyl Sulfides in the Presence of Sulfoxylate Anion Radical Precursors

Perfluoroalkyl sulfides are prepared by reaction of perfluoroalkyl halides with disulfides in the presence of sulfoxylate anion radical precursors.Aliphatic, aromatic and heteroaromatic disulfides bearing cyano, ester and amino functional groups have been employed; a variety of perhalogenoalkanes can also be employed, e.g.CF3(CF2)nI, CF3Br, CF2Br2, CF2BrCl, CFCl3 and CF2ClCFCl2.The most convenient sulfoxylate anion radical precursor for this reaction is formed by a combination of sodium formate and sulfur dioxide.

SYNTHESIS OF FLUORINATED VINYL SULFIDES AND SELENIDES

The reaction between fluoroolefins 1 and 10e and benzenesulfenyl or selenenyl halides 6 is found to be solvent-dependent and gives in most cases predominantly the regioisomer 8.The structure of adducts 8 and 9 are ascertained by 1H, 19F and 77Se NMR spectroscopy.Compounds 8 are easily halogenated and treatment of the products with magnesium or zinc leads to the desired polyfluorovinyl sulfides and selenides 10.A second route of synthesis of these reagents results from the reaction of fluorovinyllithio-derivatives 11 with benzenesulfenyl or selenenyl halides.Olefin 10e is also obtained from the selenoacetal 8t of trifluoroacetaldehyde.