Organylsilatranes from the reaction of tetraorganylsilanes with triethanolamine
摘要:
Triethanolamine selectively cleaves Si-C bonds in heterylsilanes (3) under basic/nucleophilic catalysis, leading to organylsilatranes (4) with good to excellent yields.
of substituted furans as determined by photoelectron spectroscopy are compared with the results of CNDO/2calculations. The analysis of the photoelectron spectra and quantum chemical calculations for furylsilanes, difurylsilanes and some carbon analogs has shown the importance of the pπ-dπ interaction as well as of the conjugation and necessity of the inclusion of silicon d-atomic orbitals into the
将通过光电子能谱确定的取代呋喃的第一个垂直π电离能与CNDO / 2计算的结果进行比较。光电子光谱和量子化学计算为furylsilanes,difurylsilanes和一些碳类似物的分析已经显示出的重要性p π - d π相互作用以及缀合并且包含硅的的必要性的d -原子轨道到基本放。
Erchak, N. P.; Matorykina, V. F.; Lukevits, E., Journal of general chemistry of the USSR, 1982, vol. 52, # 10, p. 2113 - 2114
作者:Erchak, N. P.、Matorykina, V. F.、Lukevits, E.
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Lukevits, E.; Pudova, O. A.; Erchak, N. P., Journal of general chemistry of the USSR, 1980, vol. 50, # 6, p. 1094 - 1099
作者:Lukevits, E.、Pudova, O. A.、Erchak, N. P.
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A novel route to pentacoordinated organylsilanes and -germanes
New convenient methods of sila- and germatranes synthesis from ethoxy-and tetraorganylsilanes and -germanes have been elaborated. The reaction of ethoxysilanes with boratrane in the presence of catalytic amounts of metal alcoholates has been investigated. Dimethylformamide (DMF) as a solvent and NaOEt as a catalyst used instead of xylene and Al(O-i-Pr)(3) were found to give better yields. The possibility of using alkoxy-, aminosilanes, tetraethoxygermane and even tetraorganylsilanes in this reaction leading to the corresponding atranes with good yields has been demonstrated. Triethanolamine in the presence of catalytic amounts of base or CsF easily substitutes furyl-, dihydrofuryl-, dihydropyranyl- and thienyl groups in tris-and tetraheterylsilanes, leading to organylsilatranes with good to excellent yields. (C) 1997 Elsevier Science S.A.
Lukevits, E.; Erchak, N. P.; Matorykina, V. F., Journal of general chemistry of the USSR, 1983, vol. 53, # 5, p. 959 - 967
作者:Lukevits, E.、Erchak, N. P.、Matorykina, V. F.、Mazheika, I. B.