Abstract:Es wurden die Lage der vOH‐Bande sowie deren Verschiebung Δ\documentclass{article}\pagestyle{empty}\begin{document}$ \tilde \nu $\end{document} bei Assoziation mit Diäthyläther für Silanole des Typs X(CH3)2SiOH mit X = CH3, CH2Cl, CH2Br, CH2J, CHCl2, CH2C6H5, CHClC6H5, CHBrC6H5 gemessen.
Sowohl für die \documentclass{article}\pagestyle{empty}\begin{document}$ \tilde \nu $\end{document}OH als auch für die Δ\documentclass{article}\pagestyle{empty}\begin{document}$ \tilde \nu $\end{document} ergeben sich lineare … Show more
“…Note that in spite of the fact that the authors of [26] used the earlier described protocol [25] for the synthesis of 1, the IR spectra in the range of the Si-OH absorption are substantially different [25,26]. Oxidation of (chloromethyl)dimethylsilane (among other silanes) with hydrogen peroxide catalyzed by lacunary polyoxotungstate leads to (chloromethyl)dimethylsilanol in 83 % yield and high selectivity (silanol:siloxane = 96:4) [27].…”
Section: Introductionmentioning
confidence: 93%
“…It is a very good model for studying the reactivity of the ClCH 2 Si and Si-OH groups in the same molecule. We have found only a few publications about the synthesis, chemical properties, and application of silanol 1 [22][23][24][25][26][27][28]. As in the case of other silanols, in the presence of bases or acids, compound 1 undergoes condensation reaction [22,23].…”
Chloromethyl)dimethylsilanol was synthesized by the hydrolysis of (chloromethyl)dimethylchlorosilane, N-[(chloromethyl)dimethylsilyl]amines, or N-(chloromethyl) dimethylsilyl-N-methylamide of diisopropylphosphoric acid.
“…Note that in spite of the fact that the authors of [26] used the earlier described protocol [25] for the synthesis of 1, the IR spectra in the range of the Si-OH absorption are substantially different [25,26]. Oxidation of (chloromethyl)dimethylsilane (among other silanes) with hydrogen peroxide catalyzed by lacunary polyoxotungstate leads to (chloromethyl)dimethylsilanol in 83 % yield and high selectivity (silanol:siloxane = 96:4) [27].…”
Section: Introductionmentioning
confidence: 93%
“…It is a very good model for studying the reactivity of the ClCH 2 Si and Si-OH groups in the same molecule. We have found only a few publications about the synthesis, chemical properties, and application of silanol 1 [22][23][24][25][26][27][28]. As in the case of other silanols, in the presence of bases or acids, compound 1 undergoes condensation reaction [22,23].…”