Sato Naoto, Hayashi Taiki, Tochigi Kazuma, Wada Hiroaki, Shimojima Atsushi, Kuroda Kazuyuki
Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan.
Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo, 169-0051, Japan.
Chemistry. 2019 Jun 12;25(33):7860-7865. doi: 10.1002/chem.201900439. Epub 2019 Apr 1.
Eight corners of a double-four ring cage-type germanoxane, containing a fluoride ion, were successfully silylated by the combination of chlorosilanes and silazanes. Three different silyl groups, trimethylsilyl, dimethylsilyl, and dimethylvinylsilyl, were attached on the corners of germanoxane cage. The solubility and reactivity of the cage modified with dimethylvinylsilyl groups were significantly increased, allowing for further reaction. Hydrosilylation reaction between dimethylvinylsilylated cage geramanoxanes and dimethylsilylated cage siloxanes afforded porous solids. Functionalization of the corners of germanoxanes with silyl groups should provide valuable building blocks in various functional materials.
含有氟离子的双四元环笼型锗氧烷的八个角通过氯硅烷和硅氮烷的组合成功实现了硅烷化。三种不同的硅烷基团，即三甲基硅基、二甲基硅基和二甲基乙烯基硅基，连接在了锗氧烷笼的角上。用二甲基乙烯基硅基修饰的笼的溶解性和反应活性显著提高，从而能够进行进一步反应。二甲基乙烯基硅烷化的笼型锗氧烷与二甲基硅烷化的笼型硅氧烷之间的硅氢加成反应得到了多孔固体。用硅烷基团对锗氧烷的角进行官能化应该能为各种功能材料提供有价值的构建单元。
