%0 Journal Article 
%A Vázquez García, Ana Belén
%A Royo Gracia, Pascual
%A Herdtweck, Eberhardt
%T Hydro- and chloro-substituted silyl- and silyl-η1 -amido-η5- tetramethylcyclopentadienyl titanium complexes
%D 2003
%@ 0022-328X
%U http://hdl.handle.net/10017/4187
%X Chlorosilyl-cyclopentadienyl titanium precursors [Ti(η5-C5Me4SiMeXCl)Cl3] (X=H 2, Cl 3) were prepared by reaction of TiCl4 with the trimethylsilyl derivatives of the corresponding cyclopentadienes. Methylation of these compounds with MgClMe under appropriate conditions afforded the methyl complexes [Ti(η5-C5Me4SiMe2R)XMe2] (R=H, X=Cl 5, Me 6; R=X=Me 7). Reactions of 2 and 3 with two equivalents of LiNHtBu afforded the ansa-silyl-η-amido compounds [Ti{η5-C5Me4SiMeX(η1-NtBu)}Cl2] (X=H 8, Cl 9). Methylation of 8 gave [Ti{η5-C5Me4SiMeH(η1-NtBu)}Me2] 10. Complex 9 was also obtained by reaction of 8 with BCl3, whereas the same reaction using alternative chlorinating agents (TiCl4, HCl) resulted in deamidation to give 2, which was also converted into 3 by reaction with BCl3. All of the new compounds were characterized by NMR spectroscopy and the molecular structures of 2 and 4 were determined by X-ray diffraction methods.
%K Titanium
%K Tetramethyl cyclopentadienyl
%K Linked amido-cyclopentadienyl
%K Chlorosilyl-cyclopentadienyl
%K Methyl complexes
%K Ciencia
%K Química inorgánica
%K Science
%K Chemistry, inorganic
%~ Biblioteca Universidad de Alcala