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首页> 外文期刊>Chemistry: A European journal >High-Yield Synthesis of Amido-Functionalized Polyoctahedral Oligomeric Silsesquioxanes by Using Acyl Chlorides
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High-Yield Synthesis of Amido-Functionalized Polyoctahedral Oligomeric Silsesquioxanes by Using Acyl Chlorides

机译：利用酰基氯高产率合成酰胺基官能化的多八面体低聚倍半硅氧烷

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摘要

Homosubstituted amido-functionalized polyoctahedral oligomeric silsesquioxanes (POSS) have been synthesized by using acyl chlorides in high yields (ca. 95%). The method proved to be superior over " conventional" syntheses applying carboxylic acids or acid anhydrides, which are much less efficient (ca. 60% yield). A palette of aryl and alkyl groups has been used as side-chains. The structures of the resulting amide-POSS are supported by multinuclear 1H, 13C, Si-29 NMR and FTIR spectroscopy and their full conversion into octasubstituted derivatives was confirmed using mass spectrometry. We also demonstrate that the functionalized silsesquioxanes with bulky organic side-chains attached to cubic siloxane core form spherical-like, well-separated nanoparticles with a size of approximately 5 nm.
机译：通过使用酰基氯，可以高产率（约95％）合成均取代的酰胺基官能化的聚八面体低聚倍半硅氧烷（POSS）。实践证明，该方法优于使用羧酸或酸酐的“常规”合成方法，后者效率低得多（约60％的收率）。芳基和烷基的调色板已被用作侧链。所得酰胺-POSS的结构由多核1H，13C，Si-29 NMR和FTIR光谱支持，并使用质谱法确认了它们完全转化为八取代衍生物。我们还证明功能化的倍半硅氧烷具有连接到立方硅氧烷核的庞大的有机侧链，形成大小约为5 nm的球形，分离良好的纳米颗粒。

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