Base catalysed hydrogenation of methylbromooligosilanes with trialkylstannanes, identification of the first methylbromohydrogenoligosilanes
摘要:
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. SiBrMe(2)-SiBrMe-SiBrMe(2)) are hydrogenated first at this silicon atom under formation of an > SiHMe group (e.g. SiBrMe(2)-SiHMe-SiBrMe(2)). Brominated silanes containing a quarternary Si(Si)(4) unit (e.g. Si(SiBrMe(2))(4)) do not react with trialkylstannanes.
Preparation of oligosilanes containing perhalogenated silyl groups and their hydrogenation by stannanes
作者:U. Herzog、G. Roewer
DOI:10.1016/s0022-328x(97)00323-9
日期:1997.10
SiX3-SiXiMe3−i (i = 0, 1, 2; X = Cl, Br), trisilanes SiX2(SiXiMe3−i) (i = 0, 1) and branched tetrasilanes SiX(SiXMe2)3 were synthesized and their behavior towards the Lewis-base catalyzed hydrogenation by stannanes was investigated. In the case of methylchlorodisilanes SiCl3-SiCliMe3−i Si-Si bond cleavage competes with the hydrogenation reaction.
从methylphenylsubstituted低聚的乙硅烷起始的SiX 3 -SiX我我3-我(我= 0,1,2; X =氯,溴),三硅烷的SiX 2(SIX我我3-我)(我= 0,1)和合成了支链四硅烷SiX(SiXMe 2)3,研究了它们对锡烷对路易斯碱催化加氢反应的行为。在methylchlorodisilanes的SiCl的情况下3 -SiCl我我3-我与氢化反应的Si-Si键裂解竞争。
Base catalysed hydrogenation of methylbromooligosilanes with trialkylstannanes, identification of the first methylbromohydrogenoligosilanes
作者:U. Herzog、G. Roewer
DOI:10.1016/s0022-328x(96)06552-7
日期:1997.1
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. SiBrMe(2)-SiBrMe-SiBrMe(2)) are hydrogenated first at this silicon atom under formation of an > SiHMe group (e.g. SiBrMe(2)-SiHMe-SiBrMe(2)). Brominated silanes containing a quarternary Si(Si)(4) unit (e.g. Si(SiBrMe(2))(4)) do not react with trialkylstannanes.
Zum Chlor/Brom-Austausch an Disilanen
作者:Harald Schmöler、Edwin Hengge
DOI:10.1007/bf00809343
日期:1984.10
Facile Skeletal Rearrangement of Polycyclic Disilenes with Bicyclo[1.1.1]pentasilanyl Groups
作者:Yuki Yokouchi、Shintaro Ishida、Takeaki Iwamoto
DOI:10.1002/chem.201801517
日期:2018.8.6
fused polycyclic disilenes 2 a and (E),(Z)‐3 b by the reduction of the 1,2‐dibromodisilanes 5 a (R=Me) and 5 b (R=iPr) bearing bicyclo[1.1.1]pentasilanyl (BPS) groups is reported. The disilenes 2 a and (E),(Z)‐3 b were characterized by a combination of NMR spectroscopy and X‐ray diffraction analysis (XRD). The reduction of 5 b in the presence of 2,3‐dimethyl‐1,3‐butadiene provided an ene adduct of