127725-93-3Relevant articles and documents
Base catalysed hydrogenation of methylbromooligosilanes with trialkylstannanes, identification of the first methylbromohydrogenoligosilanes
Herzog,Roewer
, p. 117 - 124 (2007/10/03)
The Lewis base catalysed hydrogenation of methylchlorooligsilanes with trialkylstannanes can also be applied to the hydrogenation of methylbromooligosilanes. In this way methylbromohydrogenoligosilanes were prepared for the first time. Methylbromotrisilanes with an > SiBrMe middle group (e.g. SiBrMe2-SiBrMe-SiBrMe2) are hydrogenated First at this silicon atom under formation of an > SiHMe group (e.g. SiBrMe2-SiHMe-SiBrMe2). Brominated silanes containing a quarternary Si(Si)4 unit (e.g. Si(SiBrMe2)4) do not react with trialkylstannanes.
Synthese, Kernresonanzspektren und Schwingungsspektren der Hexamethyltrisilane und Pentamethyltrisilane (XMe2Si)2SiMe2 und (XMe2Si)2SiMeX (X=H, F, Cl, Br, I, Ph, OMe)
Schenzel, Karla,Hassler, Karl
, p. 127 - 138 (2007/10/02)
The syntheses, IR, Raman and 29Si spectra of the title compounds are reported.SiSi force constants, calculated with the aid of normal coordinate analyses, are compared with 29Si29Si coupling constants.
Ligand Exchange Reactions between Haloboranes and Alkylsilanes
Einholz, Wolfgang,Gollinger, Walter,Haubold, Wolfgang
, p. 25 - 30 (2007/10/02)
In a ligand exchange reaction between BHal3 (Hal = Cl, Br) and the tetraalkylsilanes Et4Si, (Me3Si)2CH2 or Ph2CHSiMe3 the alkylhaloboranes EtBBr2 or MeBHal2 and the alkylhalosilanes Et3SiBr, HalMe2Si-CH2-SiMe3, (HalMe2Si)2CH2, and Ph2CHSiMe2Br, respectively, are formed.Similarly, the methyloligosilanes (Me3Si)2 (1) and (Me3Si)2SiMe2 (2) react with BHal3 (Hal = Cl, Br, I) via methyl-halogen-transfer to give HalMe2Si-SiMe3 (Hal = Cl, Br, I), (HalMe2Si)2 (Hal = Br, I), HalMe2Si-SiMe2-SiMe3, (Me3Si)2SiMeHal, HalMe2Si-SiMeHal-SiMe3, (HalMe2Si)SiMe2 (Hal = Cl, Br) or (BrMe2Si)2SiMeBr besides MeBHal2 (Hal = Cl, Br, I) and Me2BI, respectively.