Organosoluble zirconium phosphonate nanocomposites and their supported chiral ruthenium catalysts: The first example of homogenization of inorganic-supported catalyst in asymmetric hydrogenation
作者:Taotao Chen、Xuebing Ma、Xiaojia Wang、Qiang Wang、Jinqin Zhou、Qian Tang
DOI:10.1039/c0dt00786b
日期:——
In this article, we report the synthesis, structure, morphologies, and asymmetric catalytic properties of a series of novel organosoluble zirconium phosphonate nanocomposites and their supported chiral ruthenium catalysts, which have a good organosolubility (0.1–0.5 g mL−1) in various solvents and mesoporous, filiform, and layered structures. Due to the organosoluble properties in various organic solvents
在本文中,我们报告了一系列新型有机可溶物的合成,结构,形态和不对称催化性能 磷酸锆纳米复合材料及其负载的手性钌催化剂,在各种溶剂和介孔,丝状和层状结构中均具有良好的有机溶解度(0.1–0.5 g mL -1)。由于在各种有机溶剂中的有机可溶特性,在催化领域实现了膦酸锆负载的催化剂的第一次均质化。在取代的α-酮酯的不对称氢化中,对映选择性(74.3–84.7%ee)和分离的产率(86.7–93.6%)高于相应的均相Ru(p -cymene)(S -BINAP)Cl 2由于膦酸锆骨架中剩余的中孔引起的限制作用。反应完成后,通过添加可轻松以定量收率回收负载型催化剂环己烷 离心后再重复使用五次,而催化活性没有明显损失。