Base catalysed hydrogenation of methylbromooligosilanes with trialkylstannanes, identification of the first methylbromohydrogenoligosilanes

Article abstract of DOI:10.1016/S0022-328X(96)06552-7

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.