Grzelak Magdalena, Frąckowiak Dawid, Januszewski Rafał, Marciniec Bogdan
Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland.
Center for Advanced Technology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland.
Dalton Trans. 2020 Apr 28;49(16):5055-5063. doi: 10.1039/d0dt00557f.
In this work, we present the first example of highly efficient platinum-catalyzed hydrosilylation of vinyl- and allylgermanes with different types of silsesquioxanes and spherosilicates. This protocol allows the straightforward introduction of organogermyl functionalities with alkyl chains linked to the silsesquioxane core with good yields and excellent selectivity. These derivatives may be applied as precursors for the development of advanced hybrid materials in the future. In addition, a comparison made between vinylsilanes and vinylgermanes showed a higher reactivity of germanium compounds in the hydrosilylation reaction. To the best of our knowledge, this is the first literature example of the functionalization of silsesquioxanes and spherosilicates with these types of germanium derivatives. The reaction parameters and kinetics were determined by in situ FT-IR. In addition, our research is supported by extensive data obtained from NMR measurements.
在本工作中，我们展示了首例高效铂催化的乙烯基锗烷和烯丙基锗烷与不同类型倍半硅氧烷和球形硅酸盐的硅氢化反应。该方法能够直接引入与倍半硅氧烷核心相连且带有烷基链的有机锗官能团，产率良好且选择性优异。这些衍生物未来可作为先进杂化材料开发的前体。此外，乙烯基硅烷和乙烯基锗烷之间的比较表明，锗化合物在硅氢化反应中具有更高的反应活性。据我们所知，这是倍半硅氧烷和球形硅酸盐用这类锗衍生物进行官能化的首个文献实例。反应参数和动力学通过原位傅里叶变换红外光谱测定。此外，我们的研究得到了核磁共振测量获得的大量数据的支持。
