Disiloxane Synthesis Based on Silicon–Hydrogen Bond Activation using Gold and Platinum on Carbon in Water or Heavy Water,The Journal of Organic Chemistry

当前位置： X-MOL 学术 › J. Org. Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Disiloxane Synthesis Based on Silicon–Hydrogen Bond Activation using Gold and Platinum on Carbon in Water or Heavy Water
The Journal of Organic Chemistry ( IF 3.3 ) Pub Date : 2016-05-10 00:00:00 , DOI: 10.1021/acs.joc.6b00556
Yoshinari Sawama ₁ , Masahiro Masuda ₁ , Naoki Yasukawa ₁ , Ryosuke Nakatani ₁ , Shumma Nishimura ₁ , Kyoshiro Shibata ₁ , Tsuyoshi Yamada ₁ , Yasunari Monguchi ₁ , Hiroyasu Suzuka ₂ , Yukio Takagi ₃ , Hironao Sajiki ₁

Affiliation

Disiloxanes possessing a silicon–oxygen linkage are important as frameworks for functional materials and coupling partners for Hiyama-type cross coupling. We found that disiloxanes were effectively constructed of hydrosilanes catalyzed by gold on carbon in water as the solvent and oxidant in association with the emission of hydrogen gas at room temperature. The present oxidation could proceed via various reaction pathways, such as the hydration of hydrosilane into silanol, dehydrogenative coupling of hydrosilane into disilane, and the subsequent corresponding reactions to disiloxane. Additionally, the platinum on carbon catalyzed hydrogen–deuterium exchange reaction of arylhydrosilanes as substrates in heavy water proceeded on the aromatic nuclei at 80 °C with high deuterium efficiency and high regioselectivity at the only meta and para positions of the aromatic–silicon bond to give the deuterium-labeled disiloxanes.

中文翻译：

水中或重水中碳和金和铂在硅-氢键活化作用下合成二硅氧烷

具有硅-氧键的二硅氧烷作为功能材料的骨架和Hiyama型交叉偶联的偶联伙伴非常重要。我们发现二硅氧烷是由金在水中碳作为溶剂和氧化剂与氢在室温下的排放相关的催化而有效地由氢硅烷构成的。当前的氧化可以通过各种反应途径进行，例如将氢硅烷水合成硅烷醇，将氢硅烷脱氢偶联成乙硅烷，以及随后的相应反应生成二硅氧烷。此外，

更新日期：2016-05-10

点击分享查看原文

点击收藏

阅读更多本刊新发论文