6Dedek V,Chvatal Z.Addition of 1,2-dibromo-1-chlorotrifluoroethane to chlorotrifluoroethylene induced by UV-radiation.synthesis of perfluoro-1,3-butadiene and perfluoro-1,3,5-hexatriene[J].J.Fluorine Chem.,1986,31:363-379.
7Karimova N M,Glazkov A A,Ignatenko A V,et al.Synthesis of 1,2,3,4-tetrachlorohexafluorobutane[J].Russ.Chem.Bull.,2004,53:2236-2237.
8Georglevich B V,Sergeyevich K A,Ivanobna O S,et al.Process for production of hexafluorobutadiene and 1,2- dichlorohexafluorocyclobutane:RU,0118462[P].2004-06-15.
9Haszeldine R N,Iserson H.Preparation of fluorine compounds:US,2844636[P].1958-07-22.
10Harmon J.Polyfluorinated cycloparaffins and process for producing them:US,2404376[P].1946-07-23.
