- Advances in Perhalogeno Thiocarbonyl, Selenocarbonyl and Selenodiimine Chemistry
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Trifluoromethylselenylthiocarbonyls form with CF33-nClnSCl or CF3SeCl the corresponding disulfanes or selanesulfanes.Oxidation of CF3SeC(S)X, X = CF3Se, CF3S, Cl, or Br, with 3-Cl-C6H4C(O)OOH yields compounds CF3Se(X)C=S=O.Only decomposition products are obtained from (CF3Se)2CSe and Cl2, CF3SeCl, CF3SCl, or 3-Cl-C6H4C(O)OOH.The preparation of compounds RN=Se=NR, R = (CH3)3Si, CF3C(O), or CF3SO2, is described.Physical and spectroscopical data of the new substances are provided. - Keywords: Synthesis, Thiocarbonyl, Selenocarbonyl, Selenodiimine
- Fockenberg, F.,Haas, A.
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p. 413 - 422
(2007/10/02)
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- Advances in Trifluoromethylselenium(II)- and -selenium(IV)-Chemistry
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Fluorination of CF3SeCl with AgF leads to CF3Se(O)OH and CF3SeSeCF3 after reactions of the primary products with glass.Condensations of (CF3S)2NH and 2NH with CF3SeCl gave CF3SeN(SCF3)2, and 2NSeCF3, (CF3Se)2NSi(CH3)3, CF3SeN(H)Si(CH3)3, respectively.The reaction of FC(O)SCl with Hg(SeCF3)2 gave besides FC(O)SSeCF3 in smaller quantities also CF3SeSSeCF3.When a mixture of (CF3Se)2NH and Cl3S3N3 is heated to 50 deg C, CF3SeN=S=NSeCF3 is formed.The oxydation of CF3SeCF2X with ClF or m-chloroperbenzoic acid gave CF3Se(O)CF2X (X = F, Cl).Spectroscopical data of the substances are provided. - Key words: Fluorination of CF3SeCl, Reaction of CF3SeN(CH3)2 with HF, Syntheses of CF3SeN=S=NSeCF3 and CF3SeSSeCF3, Oxydation of CF3SeCF2X to CF3Se(O)CF2X, X = F,Cl, Spectroscopical Data
- Haas, Alois,Tebbe, Klaus
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p. 897 - 902
(2007/10/02)
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- Syntheses of (Trifluoromethylseleno)phosphoryl Dichloride and Thiocarbonyl Bromide Fluoride
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In the presence of SbCl5 or BCl3 CF3SeCl reacts with CH3OPCl2 to form CF3SeP(O)Cl2 (1).Halogen exchange reactions of SCFCl occur with OPCl3 or SPBr3 to give OPFnCl3-n or SPClnBr3-n (n = 1-3) as well as SPBrClF.The reaction of SCFCl with PBr3 leads to SCBrF (2).
- Haas, Alois,Mikolajczak, Jerzy
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p. 829 - 831
(2007/10/02)
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