Reaction of the SiCl bond with trialkyl orthoformates preparation of alkoxy-substituted silanes
作者:U Herzog、N Schulze、K Trommer、G Roewer
DOI:10.1016/s0022-328x(97)00204-0
日期:1997.11
Trialkyl orthoformates in the presence of aluminiumchloride represent quite useful reagents to generate silicon alkoxides from chlorosilanes. 3-Cyanopropyltrichlorosilane and 2-[(2-trichlorosily)ethyl]-pyridine give the triethoxy compounds 3-cyanopropyltriethoxysilane and 2-[(2-triethoxysilyl)ethyl]-pyridine respectively. Via this route, in methylchlorooligosilanes a partial or complete exchange of
Synthese und eigenschaften funktioneller polysilane: Die tetrasilane MeSi(SiMe2X)3 und hexasilane (Me2XSi)2MeSiSiMe(SiMe2X), X=Me, H, F, Cl, Br, I
作者:G. Kollegger、K. Hassler
DOI:10.1016/0022-328x(94)05010-9
日期:1995.1
Besides MeSi(SiMe(3))(3), the hexasilane [(Me(3)Si)(2)MeSi](2) is formed in astonishingly high yields in the reaction of a mixture of MeSiCl(3) and Me(3)SiCl with lithium, The permethylated silanes are easily functionalised with Me(3)SiCl/AlCl3, chlorinating all Me(3)Si-groups to form Me(2)ClSi. The reduction with LiAlH4 yields the Me(2)HSi-compounds, which are easily brominated and iodinated with CBr4 and HCI3. A subsequent reaction with ZnF2 gives the fluorocompounds. The Si-29-spectra, including (SiSi)-Si-29-Si-29 coupling constants, are reported and substituent effects are discussed.
ISHIKAWA MITSUO; IYODA JUN; IKEDA HARUHIKO; KOTAKE KAZUNORI; HASHIMOTO TO+, J. AMER. CHEM. SOC., 1981, 103, NO 16, 4845-4850