Chaiprasert Thanawat, Liu Yujia, Takeda Nobuhiro, Unno Masafumi
Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan.
Materials (Basel). 2021 Apr 16;14(8):2014. doi: 10.3390/ma14082014.
A vinyl-functionalized all--tetrasiloxycyclotetrasiloxane [ViSi(OSiMeH)O] (Vi = vinyl group) Janus precursor was prepared from potassium cyclotetrasiloxane silanolate. The Janus precursor was selectively modified at its dimethylhydrosilyl groups [-SiMeH] via the Piers-Rubinsztajn reaction to obtain a family of new tetravinyl-substituted Janus rings [ViSi(OR')O] containing various functional groups in moderate yields. Remarkably, the tetravinyl groups on the structure remained intact after modification by the Piers-Rubinsztajn reaction. Since these synthesized compounds possess multiple functional groups (up to eight per molecule), they are potential precursors for advanced hybrid organic-inorganic functional materials.
一种乙烯基官能化的全四硅氧基环四硅氧烷[ViSi(OSiMeH)O](Vi = 乙烯基)Janus前驱体由环四硅氧烷硅醇钾盐制备而成。通过皮尔斯-鲁宾斯泰因反应,该Janus前驱体在其二甲基氢硅烷基团[-SiMeH]上被选择性修饰,从而以中等产率获得了一系列含有各种官能团的新型四乙烯基取代Janus环[ViSi(OR')O]。值得注意的是,通过皮尔斯-鲁宾斯泰因反应修饰后,结构上的四乙烯基保持完整。由于这些合成化合物具有多个官能团(每个分子最多八个),它们是先进的有机-无机杂化功能材料的潜在前驱体。