Liu Guiyan, Zhang Jianzheng, Wu Bin, Wang Jianhui
Department of Chemistry, College of Science, Tianjin University, Tianjin 300072, PRC.
Org Lett. 2007 Oct 11;9(21):4263-6. doi: 10.1021/ol7018218. Epub 2007 Sep 20.
Ruthenium carbene complexes 9 with a closo-1,2-C(2)B(10)H(11) tag and 10 with an ionic nido-7,8-C(2)B(9)H(11) tag were synthesized. Both 9 and 10 are highly reactive catalysts for olefin metathesis reactions. Importantly, 10 is a robust and recyclable anion-appended catalyst that was suitable for noncovalent binding with many cationic resins. At least ten recycles were achieved for RCM of the selected substrate using 10 as the catalyst in ionic liquids.
合成了带有封闭型-1,2-C(2)B(10)H(11)标签的钌卡宾配合物9和带有离子型nido-7,8-C(2)B(9)H(11)标签的10。9和10都是用于烯烃复分解反应的高活性催化剂。重要的是，10是一种稳定且可循环使用的附加阴离子催化剂，适用于与许多阳离子树脂进行非共价结合。在离子液体中使用10作为催化剂对选定底物进行关环复分解反应时，至少实现了十次循环。
