Contributions to bis (perfluoroalkyl) chalkogenide chemistry: preparation of (R f) 2 SeO [R f= C 2 F 5,(CF 3) 2 CF, nC 4 F 9],(R f′) 2 TeX 2 [X= F, Cl: R f′= nC 3 F 7,( …
The reaction between perfluoroalkyl iodides with a threefold excess of a 1: 1 molar mixture of Se and Cu is a new method for the preparation of corresponding monoselenides (1a–c) and diselenides (2a–d). They are oxidised with HOF without a solvent to bis (perfluoroalkyl) selenium (IV) oxides (3a–d). Halogenation of (Rf) 2Te with XeF2, Cl2 or Br2 yielded (Rf) 2TeF2 (7a–c),(Rf) 2TeCl2 (8a–c) and (Rf′) 2TeBr2 (9a, 9c). Oxidation of (C2F5) 2Te with ...
