A highly efficient reduction of group 14 heteroatom-chlorine single bonds by using samarium diiodide-mediated reaction systems
A highly efficient reduction of group 14 heteroatom-chlorine single bonds by using samarium diiodide-mediated reaction systems
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DOI：
10.1016/j.jallcom.2004.12.085
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发表时间：
2006-02
影响因子：
6.2
通讯作者：
I. Kamiya;Koichiro Iida;Nami Harato;Zhifang Li;Y. Tomisaka;A. Ogawa
中科院分区：
文献类型：
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作者：
I. Kamiya;Koichiro Iida;Nami Harato;Zhifang Li;Y. Tomisaka;A. Ogawa
研究了四氢呋喃中二碘化钐还原体系对14族杂原子氯单键的还原反应。当用过量的二碘化钐（4equiv.）在THF回流温度下，分别以良好的产率得到相应的二锡烷和二锗烷。通过与金属镁或金属钐的结合，成功地进行了二碘化钐催化的氯锡烷和氯锗烷还原反应。相反，在THF中用SmI2还原氯硅烷根本不会发生，因为THF用碘代甲硅烷基（由氯硅烷和SmI2原位形成）的甲硅烷基化开环优先于所需的氯硅烷还原。
The reduction of group 14 heteroatom-chlorine single bonds by using samarium diiodide-mediated reduction systems in tetrahydrofuran has been investigated in detail. When the reduction of chlorostannanes and chlorogermanes are conducted by employing excess amounts of samarium diiodide (4equiv.) at the THF refluxing temperature, the corresponding distannanes and digermanes are obtained in good yields, respectively. By the combination with magnesium metal or samarium metal, a novel samarium diiodide-catalyzed reduction of chlorostannanes and chlorogermanes takes place successfully. In contrast, the reduction of chlorosilanes with SmI2in THF does not occur at all, because the silylative ring-opening of THF with silyl iodode (formed in situ from chlorosilanes and SmI2) proceeds in preference to the desired reduction of chlorosilanes.