- Preparation of oligosilanes containing perhalogenated silyl groups (-SiX3, -SiX2-, >SiX-, X = Cl, Br) and their hydrogenation by stannanes
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Starting from methylphenylsubstituted oligosilanes the disilanes SiX3-SiXi,Me3-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.
- Herzog,Roewer
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p. 217 - 223
(2007/10/03)
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- An examination of the chlorination of silanes by silver chloride
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It has been demonstrated that the relative rates of chlorination with AgCl follow the order Si2H6 ? CH3SiH3 > SiH4 > ClSiH3. A mechanism has been suggested which will explain this order. The reaction with CH3Si2H5 has generated CH3ClSiHSiH3, CH3SiH2SiH2Cl, CH3(Cl)SiHSiH2Cl, and CH3(Cl)SiHSiHCl2, while CH3SiCl2SiH3 has been obtained by rearrangement reactions over Al2Cl6. The formation of the first four compounds has been discussed in terms of steric and inductive effects.
- Vanderwielen,Ring
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p. 246 - 250
(2007/10/14)
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