192882-94-3Relevant academic research and scientific papers
Thiocarbonylthio compound and free radical polymerization employing the same
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Page/Page column 4, (2008/06/13)
A thiocarbonylthio compound and free radical polymerization employing the same. The thiocarbonylthio compound is represented by formula (I) or (II): wherein Z can be independently perfluoroalkyl, alkyl, haloalkyl, aryl, alkylaryl, haloalkylaryl, arylalkyl
Synthesis of alkyl perfluoroalkanedithiocarboxylates and some aspects of their reactivity in cycloaddition reactions
Portella, Charles,Shermolovich, Yuri G.,Tschenn, Olivier
, p. 697 - 702 (2007/10/03)
A new method for the synthesis of the title compounds is proposed.The starting fluorinated compounds are commercially available trifluoroethanol and higher homologues, which were transformed in three steps into (2,2-dichloroperfluoroalkyl) alkylsulfides.The last step consisted in a substitution of chlorine by sulfur by treatment with zinc sulfide.The source of zinc sulfide is crucial and the possible role of catalytic impurities was investigated.These dithioesters are excellent dienophiles.Some cycloaddition reactions with 2,3-dimethylbuta-1,3-diene and 1-(trimethylsilyloxy)buta-1,3-diene are reported. - Keywords: perfluorinated dithioester; polyfluorinated sulfide; cycloaddition; tetrahydrothiopyran
Synthesis and reactivity of trifluorodithioacetates derived from trifluorothioacetamides
Laduron, Frederic,Nyns, Claire,Janousek, Zdenek,Viehe, Heinz G.
, p. 697 - 707 (2007/10/03)
A general synthesis of trifluorodithioacetates is described by thiolysis of trifluorothioamidium salts, derived from trifluorothioacetamides. The reactivity of these CF3 bearing C2 building blocks has been investigated towards nucleophiles and in cycloaddition reactions. Trifluorodithioacetates react with dienes to give thiopyrans and with diazo compounds to give trifluoromethyl vinyl sulphides via thiirane intermediates. With amines, trifluorodithioacetates give rise to trifluorothioacetamides while thiols add by thiophilic attack leading to new trifluoroethane dithioacetal disulphide. Two equivalents of phosphite furnish one equivalent of thiophosphate and one of phosphorylated trifluoroethane.
