Immobilized metal ion-containing ionic liquids: Preparation, structure and catalytic performances in Kharasch addition reaction and Suzuki cross-coupling reactions
Immobilized metal ion-containing ionic liquids: Preparation, structure and catalytic performances in Kharasch addition reaction and Suzuki cross-coupling reactions
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DOI：
10.1016/j.molcata.2007.06.009
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发表时间：
2008-01
影响因子：
--
通讯作者：
Takehiko Sasaki;Mizuki Tada;C. Zhong;T. Kume;Y. Iwasawa
中科院分区：
文献类型：
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作者：
Takehiko Sasaki;Mizuki Tada;C. Zhong;T. Kume;Y. Iwasawa
制备了一系列固定化金属离子的离子液体（ImmM_IL），并用EXAFS、UV-vis、TGA和元素分析对其进行了表征。结果表明，所制备的离子液体比未负载的[Bmim] 2CuCl 4具有更高的催化活性，可重复用于CCl 4与苯乙烯的Kharasch加成反应。所制备的ImmPd 2 + IL对苯基硼酸和芳基卤的Suzuki偶联反应具有良好的催化活性。在整个研究过程中，本催化剂制备方法被证实是有效的和可重复使用的催化剂。
A series of immobilized metal ion-containing ionic liquids on silica surfaces (ImmM_IL) were prepared and characterized by EXAFS, UV–vis, TGA, and elemental analysis. The prepared ImmCu2+_IL was found to be more active than unsupported [Bmim]2CuCl4ionic liquid and reusable for Kharasch addition reaction between CCl4and styrene. The prepared ImmPd2+_IL was active and reusable for Suzuki cross-coupling between phenylboronic acid and arylhalide. Throughout this study the present catalyst preparation method was confirmed to give efficient and reusable catalysts.