Insights into the Hydrolytic Polymerization of Trimethoxymethylsilane. Crystal Structure of (MeO)2MeSiONa

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• 作者：Casseday P. Richers ; Jeffery Bertke ; Thomas B. Rauchfuss
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：June 20, 2016
• 年：2016
• 卷：55
• 期：12
• 页码：5744-5746
• 全文大小：225K
• 年卷期：0
• ISSN：1520-510X

文摘

The commercially practiced conversion of trimethoxymethylsilane (MTM) to [OSi(OMe)Me)]_n polymers and resins is assumed to proceed via the silanol (MeO)₂MeSiOH. Access to this crucial silanol is gained via the synthesis of (MeO)₂MeSiONa, the first methoxysilanoate to be crystallographically characterized. Mild protonation of this silanoate gives (MeO)₂MeSiOH, which is shown to condense with (MeO)₂MeSiOH but not with MTM. Condensation generates reactive disiloxanols but does not produce symmetric disiloxanes. Parallel results were obtained with (MeO)₂PhSiOH.