27491-93-6Relevant academic research and scientific papers
Preparation of halogeno(pentafluorophenyl)silanes (C6F5)nSiX4-n (X=F, Cl and Br; N=2, 3) from pentafluorophenyl(phenyl)silanes (C6F5)nSiPh4-n
Frohn,Lewin,Bardin
, p. 233 - 240 (2007/10/03)
Halogeno(pentafluorophenyl)silanes (C6F5)nSiX4-n (X=F, Cl and Br; n=2, 3) were prepared in good yields from the corresponding phenylsilanes (C6F5)nSiPh4-n by reactions with the electrophiles aHF, FSO3H, HCl-AlCl3 or with AlX3 (X=Cl, Br)-halogenated hydrocarbons. The relative leaving ability of the organyl groups (C6F5, C6H5, Me) bonded to the silicon atom and the strength of the electrophilic reagent are discussed.
Synthesis and Properties of 1,1,3,3-Tetrakis(pentafluorophenyl)-cyclo-di(silthiane) and Related Compounds
Horn, H.-G.,Probst, M.
, p. 1169 - 1178 (2007/10/03)
The synthesis of tetrakis(pentafluorophenyl-cyclo-di(silthiane) and related compounds by reacting organosubstituted silanes with sulfur or hexamethyldisilthiane is reported.The compounds are characterized by analysis, by relative molecular mass, by 1H, 13C, 19F, and 29Si NMR spectroscopy, and by mass and IR spectra, respectively.Two 29Si NMR signals of different intensity found for compounds with two different organic substituents on silicon are explained by the existence of diastereomers. - Keywords: Perfluoro-organic cyclo-di(silthianes); Synthesis; NMR spectra; Diastereomers
