173383-46-5Relevant academic research and scientific papers
Tailor-made synthesis of functional substituted oligo- and polysilanes from silyl triflates and (aminosilyl)lithium compounds
Uhlig, Wolfram
, p. 70 - 78 (2007/10/03)
Diethylamino substituted silyllithium compounds have been prepared in situ from the corresponding phenylchlorosilanes and lithium. These reagents undergo coupling reactions with triflate derivatives of silanes and oligosilanes. Exchange processes analogous to metal-halogen exchange and Si-Si bond cleavage, which are side reactions with chlorosilanes, were not observed. Based on the coupling reaction and the amino-to-triflate transformation, functionalized tri-, tetra-, penta- and hexasilanes have been synthesized. α,ω-Triflate substituted oligosilanes containing π-systems have also been obtained. These compounds are useful building blocks for new organosilicon polymers. The formation of the silicon polymers at low temperatures, in short reaction times, and with high yields is reported. The 29Si-NMR spectra indicate a regular, alternating arrangement of the building blocks in the polymer backbone.
Tailor-made synthesis of functional substituted oligosilanes from silyl triflates and (aminosilyl)lithium compounds
Uhlig, Wolfram
, p. 183 - 190 (2007/10/03)
Diethylamino substituted silyllithium compounds have been prepared in situ from the corresponding phenylchlorosilanes and lithium. These reagents undergo coupling reactions with triflate derivatives of silanes and oligosilanes. Exchange processes analogou
Synthese, Kristallstruktur und Reaktionswege von 2,2-Dimethyl-1,1,1,3,3,3-hexaphenyltrisilan
Baumeister, Ute,Schenzel, Karla,Hassler, Karl
, p. 93 - 100 (2007/10/03)
The syntheses of the trisilanes (X3Si)2SiMe2, X=H, F, Cl, Br, I, OMe, starting from (Ph3Si)2SiME2 are described.The reaction of 1,1,1,3,3,-hexaphenyl-2,2-dimethyltrisilane with triflic acid, followed by a treatment with LiF or reduction with LiAlH4, leads to the trisilanes (HPh2Si)2SiMe2, (H2PhSi)2SiMe2, HPh2SiSiMe2SiH2Ph, (FPh2Si)2SiMe2, (F2PhSi)2SiMe2 and FPh2SiSiMe2SiF2Ph.All compounds were characterized with 29Si-NMR and Infrared spectroscopy as well as elemental analyses. (Ph3Si)2SiMe2 was studied by crystal structure analysis.Keywords: Silicon; Trisilanes; 29Si-NMR spectroscopy; Crystal structure
